Patents by Inventor Yoshio Baba
Yoshio Baba 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: 7001480Abstract: A synthetic chloroprene rubber adhesive composition which contains carboxylated synthetic chloroprene rubber for the main ingredient thereof and further contains chlorinated polypropylene and/or a chlorinated polypropylene derivatives. The adhesive composition can strongly bond various components to polypropylene used for a speaker frame, etc. unlike conventional synthetic chloroprene rubber adhesives which have insufficient adhesion strength in this application.Type: GrantFiled: January 8, 1999Date of Patent: February 21, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kazurou Okuzawa, Yoshio Baba, Kazutami Wakabayashi
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Patent number: 4851192Abstract: An aluminum alloy for structures with increased electrical resistivity, consisting essentially of: 1.0-5.0% by weight of Li; one or a plurality of members selected from the group consisting of not more than 0.20% by weight of Ti, 0.05-0.40% by weight of Cr, 0.05-0.30% by weight of Zr, 0.05-0.35% by weight of V and 0.05-0.30% by weight of W; and the balance being aluminum, and impurities which would inevitably be included in the alloy. The aluminum alloy may further include (a) not more than 5.0% by weight of Mn, and/or (b) 0.05-5.0% by weight of Cu and/or 0.05-8.0% by weight of Mg.Type: GrantFiled: February 12, 1988Date of Patent: July 25, 1989Assignee: Sumitomo Light Metal Industries, Ltd.Inventors: Yoshio Baba, Teruo Uno, Hideo Yoshida
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Patent number: 4645544Abstract: The present invention relates to a cold-rolled aluminum-alloy sheet having a high strength and a good formability required for producing a DI can. The sheet according to the present invention contains 0.1-2.0% Mn, 0.1-2.0% Mg, and 0.1 to 0.5% Si, has a thickness of 0.4 mm or less. The present invention is characterized by holding a sheet to a temperature of from 80.degree. to 150.degree. C., when it is already heat treated at 400.degree.-580.degree. C. and it is not yet finally cold-rolled. The sheet according to present invention is finally cold-rolled and has a fine grain size.Type: GrantFiled: June 14, 1983Date of Patent: February 24, 1987Assignee: Sumitomo Light Metal IndustriesInventors: Yoshio Baba, Shin Tsuchida
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Patent number: 4626295Abstract: A brazing method is disclosed which provides superior strength in the brazed joint formed. The brazed structure is subjected to a heat treatment after brazing, which improves the strength of the joint even if Magnesium compounds are employed.Type: GrantFiled: April 26, 1985Date of Patent: December 2, 1986Assignee: Sumitomo Precision Products Co., Ltd.Inventors: Kantaro Sasaki, Shosuke Iwasaki, Tetsuo Abiko, Yoshio Baba, Michiki Hagiwara, Keizo Nanba
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Patent number: 4620961Abstract: A high electrical resistance, superior formability aluminum alloy useful as structural materials used in structures suffering the action of high magnetic field, nuclear fusion reactor or the like, said aluminum alloy consisting essentially of, by weight, 1.0 to 8.0% of Mg, 0.05 to less than 1.0% of Li, at least one element selected from the group consisting of 0.05 to 0.20% of Ti, 0.05 to 0.40% of Cr, 0.05 to 0.30% of Zr, 0.05 to 0.35% of V, 0.05 to 0.30% of W and 0.05 to 2.0% of Mn, and the balance being aluminum and incidental impurities. Further, Bi in the range of 0.05 to 0.50 wt. % may be contained in said alloy.Type: GrantFiled: June 18, 1984Date of Patent: November 4, 1986Assignee: Sumitomo Light Metal Industries, Ltd.Inventors: Yoshio Baba, Teruo Uno, Hideo Yoshida, Yoshifusa Shoji
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Patent number: 4605448Abstract: A high strength, aluminum alloy sheet having good formability is disclosed which is particularly suitable for forming can-body parts and can-end parts, which sheet has received a final cold rolling reduction of at least 50% and consists essentially of Mn 0.30 to 1.50 wt. %, Mg 0.50 to 2.00 wt. %, preferably 0.50 to 1.25 wt. %, Si 0.52 to 1.00 wt. % and the balance being Al and incidental impurities. If required, the aluminum alloy forming sheet may also, in addition to the above elements, contain at least one component selected from the group consisting of Fe, Cu, Cr, Zn and Ti in specified ranges.The alloy sheet was produced by a specially prescribed production method.Type: GrantFiled: December 10, 1981Date of Patent: August 12, 1986Assignee: Sumitomo Light Metal Industries, Ltd.Inventors: Yoshio Baba, Shin Tsuchida
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Patent number: 4569703Abstract: An aircraft stringer material having high strength, small grain size, good resistance to stress corrosion cracking and a very high degree of workability is produced from an aluminum base alloy consisting essentially of 5.1 to 8.1 wt. % Zn, 1.8 to 3.4 wt. % Mg, 1.2 to 2.6 wt. % Cu, up to 0.20 wt. % Ti and at least one of 0.18 to 0.35 wt. % Cr and 0.05 to 0.25 wt. % Zr, the balance being aluminum and impurities, by a production method characterized by a special annealing step including rapid heating to a temperature of 320.degree. to 500.degree. C. at a heating rate exceeding 11.degree. C./min.Further, a corrosion-resistant stringer material is produced in a manner very similar to the above production method, using the above aluminum alloy as a core and AA7072 alloy as cladding.Type: GrantFiled: June 1, 1983Date of Patent: February 11, 1986Assignee: Sumitomo Light Metal Industries, Ltd.Inventors: Yoshio Baba, Teruo Uno, Hideo Yoshida
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Patent number: 4462843Abstract: An aluminum alloy material having a high strength, small grain size, good resistance to stress corrosion cracking and very high degree of workability is produced from an aluminum base alloy consisting essentially of 5.1 to 8.1 wt. % Zn, 1.8 to 3.4 wt. % Mg, 1.2 to 2.6 wt. % Cu, up to 0.2 wt. % Ti and at least one of 0.18 to 0.35 wt. % Cr and 0.05 to 0.25 wt. % Zr, the balance being aluminum and impurities by an improved production method described in detail in the disclosure. The improved method is particularly characterized by a special annealing step in a continuous annealing furnace under the application of a tension not exceeding 2 kg/mm.sup.2 to a coiled alloy sheet to be annealed, the annealing including rapid heating of the coiled alloy sheet to a temperature of 400.degree. to 500.degree. C. at a heating rate exceeding 50.degree. C./min.Type: GrantFiled: March 5, 1982Date of Patent: July 31, 1984Assignee: Sumitomo Light Metal Industries, Ltd.Inventors: Yoshio Baba, Teruo Uno
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Patent number: 4410370Abstract: An aircraft stringer material having high strength, small grain size, good resistance to stress corrosion cracking and a very high degree of workability is produced from an aluminum base alloy consisting essentially of 5.1 to 8.1 wt. % Zn, 1.8 to 3.4 wt. % Mg, 1.2 to 2.6 wt. % Cu, up to 0.20 wt. % Ti and at least one of 0.18 to 0.35 wt. % Cr and 0.05 to 0.25 wt. % Zr, the balance being aluminum and impurities, by a production method characterized by a special annealing step including rapid heating to a temperature of 320.degree. to 500.degree. C. at a heating rate exceeding 11.degree. C./min.Further, a corrosion-resistant stringer material is produced in a manner very similar to the above production method, using the above aluminum alloy as a core and AA7072 alloy as cladding.Type: GrantFiled: July 30, 1980Date of Patent: October 18, 1983Assignee: Sumitomo Light Metal Industries, Ltd.Inventors: Yoshio Baba, Teruo Uno, Hideo Yoshida
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Patent number: 4357397Abstract: A sacrificial brazing fin stock for use in an aluminum base alloy heat exchanger comprises an aluminum base alloy core having a grain size of 100 .mu.m or more and consisting essentially of 0.5 to 2 wt. % manganese plus iron, said manganese being more than iron, 0.1 to 0.7 wt. % zinc, 0.001 to less than 0.02 wt. % tin, and balance aluminum and a cladding consisting of one material selected from an Al-Si base alloy and an Al-Si-Mg base alloy.The above fin stock protected a main tube of the heat exchanger from a pitting corrosion and led to a greatly expanded use of the aluminum base alloy heat exchanger.Type: GrantFiled: July 28, 1980Date of Patent: November 2, 1982Assignee: Sumitomo Light Metal Industries, Ltd.Inventors: Yoshio Baba, Zenichi Tanabe, Toshiyasu Fukui, Hiroshi Ikeda
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Patent number: 4284437Abstract: A hard tempered aluminum alloy sheet useful for deep drawing is prepared by a process comprising the steps of hot rolling an ingot of aluminum alloy consisting essentially of 4.0 to 6.0 Mg wt. %, at least one component selected from the group consisting of 0.1 to 0.7 wt. % Mn, 0.01 to 0.05 wt. % Zr, 0.005 to 0.12 wt. % V and up to 0.05 wt. % Ti and the balance aluminum to a sheet not more than 2.5 mm thick, intermediate annealing the hot rolled alloy and final cold rolling the annealed alloy to effect a rolling reduction of less than 85%.In case the finishing temperature of the hot rolling is adjusted to a temperature of 300.degree. to 350.degree. C., the above intermediate annealing can be omitted.Type: GrantFiled: December 18, 1979Date of Patent: August 18, 1981Assignee: Sumitomo Light Metal Industries, Ltd.Inventors: Yoshio Baba, Shin Tsuchida, Masaaki Tobinaga
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Patent number: 4244756Abstract: The fin stocks for use in a heat exchanger made of aluminum alloy are made by use of an aluminum alloy having a sacrificial anode effect so that the fluid passage members of the heat exchanger are protected from corrosion electrochemically. A method for producing an aluminum alloy for use in the fin stocks is disclosed with the analysis of the function of each component of the aluminum alloy and determination of the ratio of each component in the alloy.Type: GrantFiled: March 19, 1979Date of Patent: January 13, 1981Assignee: Sumitomo Light Metal Industries, Ltd.Inventors: Zenichi Tanabe, Yoshio Baba, Toshiyasu Fukui, Satoshi Kimura
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Patent number: 4140556Abstract: An aluminum alloy, excellent concurrently in strength and formability, suitably used in car bodies, essentially contains Mg within the range between 3.5 and 5.5%, Zn within the range between 0.5 and 2.0%, and Cu within the range between 0.3 and 1.2%, wherein percents are all by weight; and another still further improved aluminum alloy, excellent concurrently in strength and formability, suitable for similar use, and finer in grain size, indispensably contains all the abovementioned three essential elements in the same ranges of percent by weight, and has optionally added thereto one or more of the elements selected from Mn within the range between 0.05 and 0.4%, Cr within the range between 0.05 and 0.25%, Zr within the range between 0.05 and 0.25%, and V within the range between 0.01 and 0.15%, wherein percents are all by weight.Type: GrantFiled: April 14, 1977Date of Patent: February 20, 1979Assignee: Sumitomo Light Metal Industries, Ltd.Inventors: Yoshio Baba, Teruo Uno
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Patent number: 4005243Abstract: An aluminum alloy with freely-machinable or free-cutting properties and corrosion resistance consists essentially of aluminum, copper, magnesium, tin, lead, and silicon and optionally further contains small amounts of any one or more of the elements selected from chromium, manganese, titanium, vanadium and zirconium. This alloy has the property for preventing peeling-off of an anodically oxidized surface layer after being heated at an elevated temperature.Type: GrantFiled: July 18, 1975Date of Patent: January 25, 1977Assignee: Sumitomo Light Metal Industries, Ltd.Inventors: Yoshio Baba, Akira Takashima
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Patent number: 3960683Abstract: A process for the desulfurization of light oils, which comprises irradiat light oils containing sulfur compounds such as mercaptans and sulfides with ultraviolet rays to decompose the sulfur compounds into water-soluble compounds and thereafter, washing the light oils with water to remove the water-soluble compounds.Type: GrantFiled: July 23, 1974Date of Patent: June 1, 1976Assignee: Director-General of the Agency of Industrial Science and TechnologyInventor: Yoshio Baba
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Patent number: 3935007Abstract: An aluminum alloy of age-hardening type indispensably containing copper, magnesium and silicon, being optionally added thereto traces of any one or more than one element selected from vanadium, manganese, chromium, zirconium and titanium.A sheet or strip made from said alloy ingot, being submitted to solution treatment followed by precipitation process can improve forming properties, such as tensile strength, LDR and/or earing ratio, and be free from stretcher-strain marks.Said sheet or strip maintains high strength particularly when it is submitted to baking i.e. high temperature curing of paint coated thereon.Type: GrantFiled: November 13, 1974Date of Patent: January 27, 1976Assignee: Sumitomo Light Metal Industries, Ltd.Inventors: Yoshio Baba, Mituhiro Kawai