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Toho Zinc
is a Economy of Japan, Japanese manufacturer of zinc related products. Established in 1937, it smelts nonferrous metals such as lead and zinc and produces electronic components. There are seven branches in Japan and two branches in China, in Hong Kong and Shanghai. The company was responsible for cadmium poisoning on Tsushima Island in the late twentieth century. The company is Japan’s third-biggest producer of zinc. Operations Toho Zinc has four manufacturing sites in Japan: * Annaka, Gunma, Annaka smelter and refinery with zinc smelting and refining operations * Ōsakikamijima, Hiroshima, Chigirishima smelter and refinery with lead smelting and refining operations * Iwaki, Fukushima, Onahama smelter and refinery recycling operations * Fujioka Works at which electronic components and materials are produced References External links Toho Zinc official websiteToho Zinc official website Electronics companies of Japan Mining companies of Japan Manufacturing companie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Company
A public company is a company whose ownership is organized via shares of stock which are intended to be freely traded on a stock exchange or in over-the-counter markets. A public (publicly traded) company can be listed on a stock exchange (listed company), which facilitates the trade of shares, or not (unlisted public company). In some jurisdictions, public companies over a certain size must be listed on an exchange. In most cases, public companies are ''private'' enterprises in the ''private'' sector, and "public" emphasizes their reporting and trading on the public markets. Public companies are formed within the legal systems of particular states, and therefore have associations and formal designations which are distinct and separate in the polity in which they reside. In the United States, for example, a public company is usually a type of corporation (though a corporation need not be a public company), in the United Kingdom it is usually a public limited company (plc), i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zinc
Zinc is a chemical element with the symbol Zn and atomic number 30. Zinc is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodic table. In some respects, zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn2+ and Mg2+ ions are of similar size.The elements are from different metal groups. See periodic table. Zinc is the 24th most abundant element in Earth's crust and has five stable isotopes. The most common zinc ore is sphalerite (zinc blende), a zinc sulfide mineral. The largest workable lodes are in Australia, Asia, and the United States. Zinc is refined by froth flotation of the ore, roasting, and final extraction using electricity ( electrowinning). Zinc is an essential trace element for humans, animals, plants and for microorganisms and is necessary for prenatal and postnatal development. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manufacturing Companies Based In Tokyo
Manufacturing is the creation or production of goods with the help of equipment, labor, machines, tools, and chemical or biological processing or formulation. It is the essence of secondary sector of the economy. The term may refer to a range of human activity, from handicraft to high-tech, but it is most commonly applied to industrial design, in which raw materials from the primary sector are transformed into finished goods on a large scale. Such goods may be sold to other manufacturers for the production of other more complex products (such as aircraft, household appliances, furniture, sports equipment or automobiles), or distributed via the tertiary industry to end users and consumers (usually through wholesalers, who in turn sell to retailers, who then sell them to individual customers). Manufacturing engineering is the field of engineering that designs and optimizes the manufacturing process, or the steps through which raw materials are transformed into a final product. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining Companies Of Japan
Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic viability of investing in the equipment, labor, and energy required to extract, refine and transport the materials found at the mine to manufacturers who can use the material. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, and fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronics Companies Of Japan
The field of electronics is a branch of physics and electrical engineering that deals with the emission, behaviour and effects of electrons using electronic devices. Electronics uses active devices to control electron flow by amplification and rectification, which distinguishes it from classical electrical engineering, which only uses passive effects such as resistance, capacitance and inductance to control electric current flow. Electronics has hugely influenced the development of modern society. The central driving force behind the entire electronics industry is the semiconductor industry sector, which has annual sales of over $481 billion as of 2018. The largest industry sector is e-commerce, which generated over $29 trillion in 2017. History and development Electronics has hugely influenced the development of modern society. The identification of the electron in 1897, along with the subsequent invention of the vacuum tube which could amplify and rectify small elect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iwaki, Fukushima
is a city located in Fukushima Prefecture, Japan. , Iwaki had a population of 337,765 in 143,500 households, and population density of 270 persons per km2. The total area of the city is , making it the largest city in the prefecture and the 10th largest city in Japan (2010) in terms of area. Iwaki is a designated core city, and is also one of the growing number of cities written in ''hiragana''. The present Iwaki City started as the merger of 14 smaller municipalities on October 1, 1966. Every year, Iwaki hosts the Taira Tanabata Festival from 6–8 August. Geography and climate The city is located at the southeastern end of Tōhoku region and borders on Ibaraki Prefecture. The city occupies around 8.9 percent of the total area of Fukushima Prefecture. The eastern part of the city is made up of of coastline which faces the Pacific Ocean and the western part goes through the Abukuma highlands and joins up with the central part of Fukushima Prefecture. The western part is a range ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ōsakikamijima, Hiroshima
is a town located in Toyota District, Hiroshima Prefecture, Japan. The Toyota District comprises a small island of the Geiyo Islands of the Seto Inland Sea, which separates Hiroshima Prefecture and Ehime Prefecture. Ōsakikamijima is the only town on the island. As of April 30, 2017, the town had an estimated population of 7,801 and a density Density (volumetric mass density or specific mass) is the substance's mass per unit of volume. The symbol most often used for density is ''ρ'' (the lower case Greek letter rho), although the Latin letter ''D'' can also be used. Mathematical ... of 180 persons per km². The total area is 43.24 km². On April 1, 2003 the towns of Ōsaki, Higashino and Kinoe, all from Toyota District, merged to form the new town of Ōsakikamijima. Education **Osaki Elementary School **Higashino Elementary School **Kinoe Elementary School **Ōsakikamijima Junior High School **Ōsaki Kaisei High School **Hiroshima National College of Maritime T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zinc Smelting
Zinc smelting is the process of converting zinc concentrates (ores that contain zinc) into pure zinc. Zinc smelting has historically been more difficult than the smelting of other metals, e.g. iron, because in contrast, zinc has a low boiling point. At temperatures typically used for smelting metals, zinc is a gas that will escape from a furnace with the flue gas and be lost, unless specific measures are taken to prevent it. The most common zinc concentrate processed is zinc sulfide,. which is obtained by concentrating sphalerite using the froth flotation method. Secondary (recycled) zinc material, such as zinc oxide, is also processed with the zinc sulfide.. Approximately 30% of all zinc produced is from recycled sources. Methods There are two methods of smelting zinc: the pyrometallurgical process and the electrolysis process. Both methods are still used. Both of these processes share the same first step: roasting. Roasting Roasting is a process of oxidizing zinc sulfide co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annaka, Gunma
file:The remains of the Usui Magistrate’s office.jpg, 240px, Edo-period Usui Magistrate’s office in Annaka is a Cities of Japan, city located in Gunma Prefecture, Japan. , the city had an estimated population of 47,911 in 24,749 households, and a population density of 210 persons per km². The total area of the city is . Geography Annaka is located in the southwestern portion of Gunma Prefecture at the very northernmost point of the Kantō Plain, bordered by Nagano Prefecture to the west. The Usui Pass connects Annaka with neighboring Karuizawa, Nagano. *Mountains: Chausuyama (596m), Mount Myōgi (1103m) *Rivers: Usigawa, Tsukumogawa *Lakes: Sakamoto Dam, Nakagi Dam Surrounding municipalities Gunma Prefecture * Takasaki, Gunma, Takasaki * Tomioka, Gunma, Tomioka * Shimonita, Gunma, Shimonita Nagano Prefecture * Karuizawa, Nagano, Karuizawa Climate Annaka has a Humid continental climate (Köppen ''Cfa'') characterized by warm summers and cold winters with heavy snowfall. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shanghai
Shanghai (; , , Standard Mandarin pronunciation: ) is one of the four direct-administered municipalities of the People's Republic of China (PRC). The city is located on the southern estuary of the Yangtze River, with the Huangpu River flowing through it. With a population of 24.89 million as of 2021, Shanghai is the most populous urban area in China with 39,300,000 inhabitants living in the Shanghai metropolitan area, the second most populous city proper in the world (after Chongqing) and the only city in East Asia with a GDP greater than its corresponding capital. Shanghai ranks second among the administrative divisions of Mainland China in human development index (after Beijing). As of 2018, the Greater Shanghai metropolitan area was estimated to produce a gross metropolitan product (nominal) of nearly 9.1 trillion RMB ($1.33 trillion), exceeding that of Mexico with GDP of $1.22 trillion, the 15th largest in the world. Shanghai is one of the world's major centers for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hong Kong
Hong Kong ( (US) or (UK); , ), officially the Hong Kong Special Administrative Region of the People's Republic of China ( abbr. Hong Kong SAR or HKSAR), is a city and special administrative region of China on the eastern Pearl River Delta in South China. With 7.5 million residents of various nationalities in a territory, Hong Kong is one of the most densely populated places in the world. Hong Kong is also a major global financial centre and one of the most developed cities in the world. Hong Kong was established as a colony of the British Empire after the Qing Empire ceded Hong Kong Island from Xin'an County at the end of the First Opium War in 1841 then again in 1842.. The colony expanded to the Kowloon Peninsula in 1860 after the Second Opium War and was further extended when Britain obtained a 99-year lease of the New Territories in 1898... British Hong Kong was occupied by Imperial Japan from 1941 to 1945 during World War II; British administration resume ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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