Patents by Inventor Kazutoshi Shimogori
Kazutoshi Shimogori has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5135817Abstract: Zn-Mg alloy is plated by vapor deposition on the surface of metals. Since Zn and Mg are vapor-deposited as a vapor mixture of an optional ratio on the surface of metals, plated layers of excellent corrosion resistance, peeling resistance of coating film, formability, etc. can be formed. There is disclosed a method of forming uniform vapor mixtures of Zn and Mg, and vapor-depositing them on the surface of metals as the method forming the vapor-deposited layers.Type: GrantFiled: October 23, 1990Date of Patent: August 4, 1992Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Kazutoshi Shimogori, Hiroshi Satoh, Masao Toyama, Hidetoshi Nishimoto, Koki Ikeda, Junji Kawahuku, Shoji Miyake, Shingo Nomura, Hirohiko Sakai
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Patent number: 5002837Abstract: Zn-Mg alloy is plated by vapor deposition on the surface of metals. Since Zn and Mg are vapor-deposited as a vapor mixture of an optional ratio on the surface of metals, plated layers of excellent corrosion resistance, peeling resistance of coating film, formability, etc. can be formed. There is disclosed a method of forming uniform vapor mixtures of Zn and Mg, and vapor-depositing them on the surface of metals as the method forming the vapor-deposited layers.Type: GrantFiled: January 4, 1989Date of Patent: March 26, 1991Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Kazutoshi Shimogori, Hiroshi Satoh, Masao Toyama, Hidetoshi Shimoto, Koki Ikeda, Junji Kawahuku, Shoji Miyake, Shingo Nomura, Hirohiko Sakai
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Patent number: 4963440Abstract: Provided herein is an Al-Cr alloy vapor deposited product having high corrosion resistance which can be used under a corrosive environment for a long period of time on account of the outstanding corrosion resistance and heat resistance of the Al-Cr alloy vapor deposited layer.Type: GrantFiled: January 19, 1989Date of Patent: October 16, 1990Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Kazutoshi Shimogori, Hiroshi Satoh, Masao Toyama, Hidetoshi Nishimoto, Koki Ikeda, Junji Kawafuku
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Patent number: 4851054Abstract: Disclosed herein is a rolled steel having excellent resistance to sulfide stress corrosion cracking. It comprises 0.20-0.40 wt. % C, .ltoreq.0.50 wt. % Si, .ltoreq.1.90 wt. % Mn, .ltoreq.0.06 wt. % Al, 0.0030-0.0090 wt. % N, 0.005-0.10 wt. % Nb, 0.005-0.050 wt. % Ti, and the balance iron and inevitable impurities. The rolled steel contains at least 4.times.10.sup.8 ultrafine carbonitride particles or 0.1 .mu.m or smaller per mm.sup.3 as a result that a bloom or slab having the above components is soaked, subjected at 1200.degree.-950.degree. C. to rough rolling under conditions of a total reduction percentage of 75% or lower, cooled at a cooling rate of 1.5.degree. C./sec. or higher after completion of the rough rolling and until the initiation of finish rolling, and then completed with its final rolling above the A.sub.1 transformation temperature. A process for producing the above rolled steel is also disclosed.Type: GrantFiled: January 22, 1988Date of Patent: July 25, 1989Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Toshio Fukuzuka, Kazutoshi Shimogori, Yasushi Torii, Kohjiro Kitahata, Takuo Hosoda
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Patent number: 4820486Abstract: The present invention relates to low alloy steel and specifically to nickel-chrome-molybdenum steel.A low alloy steel having excellent stress corrosion cracking resistance containing C:.ltoreq.0.40%, Si:.ltoreq.0.15%, Mn:.ltoreq.0.20%, P:.ltoreq.0.010%, S:.ltoreq.0.030%, Ni: 0.50 to 4.00%, Cr: 0.50 to 2.50%, Mo: 0.25 to 4.00% and V:.ltoreq.0.30%, said Si, Mn and P being fulfilled with relationship of Si+Mn+20P.ltoreq.0.30%, the remainder comprising Fe and unavoidable impurities, the prior austenite crystal grain size being in excess of 4 of ASTM crystal grain size number.Type: GrantFiled: March 31, 1986Date of Patent: April 11, 1989Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Kazutoshi Shimogori, Kazuo Fujiwara, Kiyoshi Sugie, Kikuo Morita, Takenori Nakayama, Mutsuhiro Miyakawa, Yasushi Torii
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Patent number: 4634478Abstract: There is provided a Ti-Mo alloy containing 0.2 to 3.0 wt % of molybdenum, with the balance being substantially titanium, characterized in that the amount of Fe in the impurities is not greater than 0.1% and the amount of O.sub.2 in the impurities is in the range that satisfies the following equation on the basis of the amount of Mo (%).O.sub.2 (%).ltoreq.9/35-1/28.multidot.Mo (%)said titanium alloy being highly resistant to pitting corrosion in an environment where there are bromide ions and being superior in formability. Said alloy undergoes heating at a temperature higher than 700.degree. C. and lower than the .alpha.-transformation point and then cooling at a rate of 500.degree. C./min or less, whereby said alloy is rendered malleable.Type: GrantFiled: August 12, 1985Date of Patent: January 6, 1987Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Kazutoshi Shimogori, Hiroshi Satoh, Fumio Kamikubo
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Patent number: 4587098Abstract: A method of minimizing corrosion deterioration and hydrogen absorption embrittlement of tantalum encountered in performing acid digestion of organic waste matter put in an acid digestion kettle of tantalum containing high temperature high concentration sulfuric acid includes the addition of nitric acid, nitrous acid, nitrates, nitrites and/or nitrogen oxides to the sulfuric acid bath.Type: GrantFiled: May 18, 1981Date of Patent: May 6, 1986Assignees: Doryokuro Kakunenryo Kaihatsu Jigyodan, Kabushiki Kaisha Kobe Seiko ShoInventors: Katsuyuki Ohtsuka, Ryukichi Mizuno, Hitoshi Miyazaki, Toshio Fukuzuka, Kazutoshi Shimogori, Hiroshi Satoh, Fumio Kami Kubo
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Patent number: 4473481Abstract: A lubricant film which prevents galling or sliding metal surfaces comprising: a solid lubricant comprising 60-80% wt % of MoS.sub.2 or MoS.sub.2 +graphite; a lubricant additive comprising at least one component which comprises 10-30% wt % of Sb.sub.2 O.sub.3, Fe powder Zn powder or Ag powder; and an organic binder comprising 3-15% by weight of at least one component selected from the group consisting of epoxy ester resin, acrylic resin and urea resin.Type: GrantFiled: December 7, 1982Date of Patent: September 25, 1984Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Toshio Fukutsuka, Kazutoshi Shimogori, Kazuo Fujiwara, Etsuo Yamamoto, Keiichi Wada
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Patent number: 4406761Abstract: An efficient method of descaling metal sheets, such as titanium and stainless steel sheets, which includes carrying out anodic electrolysis using a metal sheet as the anode while sliding an abrasive member relatively to and on the surface of the metal sheet, is disclosed. The abrasive member essentially constitutes a fabric-like material made of synthetic resin.Type: GrantFiled: April 24, 1981Date of Patent: September 27, 1983Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Kazutoshi Shimogori, Kazuichi Kajiwara, Kenji Miki, Toshio Fukutsuka
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Patent number: 4369073Abstract: A thin corrosion protective film of an iron oxide can be formed on the inner surface of a condenser tube made of a copper alloy by first applying on the inner surface a thin layer of an acidic suspension containing iron powder and then exposing the thus-coated inner surface to an atmosphere of an oxidizing gas. The above method can be carried out in a relatively short period of time and also in a relatively simple fashion. The resultant protective film is uniform and hardly reduces the thermal conductivity of the condenser tube, thus ideal as a protective film for condenser tubes of a heat exchanger.Type: GrantFiled: April 21, 1981Date of Patent: January 18, 1983Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Toshio Fukutsuka, Kazutoshi Shimogori, Etsuo Yamamoto, Kenji Miki
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Patent number: 4202751Abstract: A sacrificial anode for use in preventing corrosion of copper alloy parts and hydrogen absorption in titanium or titanium alloy parts of an apparatus useful for treating hot sea water, comprising a metal or metal alloy which maintains the potential of said copper alloy parts and titanium or titanium alloy parts serving as cathodes in said apparatus in the range of -0.5 to -0.65 V, relative to the potential of a saturated calomel electrode.Type: GrantFiled: May 15, 1978Date of Patent: May 13, 1980Assignee: Kobe Steel, Ltd.Inventors: Toshio Fukuzuka, Kazutoshi Shimogori, Hiroshi Satoh, Fumio Kamikubo, Tatsuo Hara
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Patent number: 4154897Abstract: This invention relates to a novel chemical apparatus, the inner surfaces of which are constituted by titanium material. The invention solves the problems of crevice corrosion and embrittlement of the material by taking in hydrogen, and discloses a method of solving such problems.The prior art methods of preventing crevice corrosion in apparatus prepared from titanium metal and also preventing the titanium of such apparatus from becoming fragile due to absorption of hydrogen include a method , in which an element of the platinum group is deposited on the surface of the titanium material and diffused thereinto. Alternatively, a Ti-Pd alloy is used as the material of the apparatus. Such methods, however, complicate the manufacture of the apparatus and are also disadvantageous in view of the cost of the great quantity of the platinum group element such as palladium which is consumed.Type: GrantFiled: January 25, 1978Date of Patent: May 15, 1979Assignee: Kobe Steel, Ltd.Inventors: Kazutoshi Shimogori, Hiroshi Sato, Haruo Tomari
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Patent number: 4107024Abstract: An electrolytic cell for use in various electrolytic treatments such as the sterilization of sea water includes a plurality of monopolar bar type electrodes, and an electrolytic solution filled in clearances between the electrodes. At least one group of electrodes disposed in the electrolytic cell is arranged so that one electrode is located at the center of an equilateral hexagon and the other electrodes are located at apexes of the hexagon.Type: GrantFiled: May 18, 1977Date of Patent: August 15, 1978Assignee: Kobe Steel, Ltd.Inventors: Toshio Fukuzuka, Kazutoshi Shimogori, Hiroshi Satoh
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Patent number: 4082900Abstract: The invention relates to a novel chemical apparatus, the inner surfaces of which are constituted by titanium material. The invention solves the problems of crevice corrosion and embrittlement of the material by taking in hydrogen, and discloses a method of solving such problems.The prior-art methods of preventing crevice corrosion in apparatus prepared from titanium metal and also preventing the titanium of such apparatus from becoming fragile due to absorption of hydrogen include a method in which an element of the platinum group is deposited on the surface of the titanium material and difffused thereinto. Alternatively, a Ti-Pd alloy is used as the material of the apparatus. Such methods, however, complicate the manufacture of the apparatus and are also disadvantageous in view of the cost of the great quantity of the platinum group element such as palladium which is consumed.Type: GrantFiled: March 15, 1976Date of Patent: April 4, 1978Assignee: Kobe Steel, Ltd.Inventors: Kazutoshi Shimogori, Hiroshi Sato, Haruo Tomari