Patents by Inventor Yoshio Yoshikawa
Yoshio Yoshikawa 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: 7010901Abstract: A method of producing a hot melt adhesive solid, the method comprising the steps of inserting a hot melt adhesive heated to higher than a flow temperature into a container having a mold-releasing internal surface and a bottom plate which is openable and closable or removably fixable to the container, cooling the hot melt adhesive at least until the surface of hot melt adhesive becomes solidified, and taking out the hot melt adhesive from the container by opening the bottom plate or displacing the same; hot melt adhesive solid; method of packaging the same; and method of transporting the same.Type: GrantFiled: June 18, 2003Date of Patent: March 14, 2006Assignee: Matsumura Oil Research Corp.Inventors: Kazuhiro Ogura, Yoshio Yoshikawa
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Publication number: 20040255555Abstract: A method of producing a hot melt adhesive solid, the method comprising the steps of inserting a hot melt adhesive heated to higher than a flow temperature into a container having a mold-releasing internal surface and a bottom plate which is openable and closable or removably fixable to the container, cooling the hot melt adhesive at least until the surface of hot melt adhesive becomes solidified, and taking out the hot melt adhesive from the container by opening the bottom plate or displacing the same; hot melt adhesive solid; method of packaging the same; and method of transporting the same.Type: ApplicationFiled: June 18, 2003Publication date: December 23, 2004Inventors: Kazuhiro Ogura, Yoshio Yoshikawa
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Patent number: 5510166Abstract: Disclosed are an inhibitor parcel comprising (a) a composition comprising an unsaturated fatty acid compound as its main ingredient and (b) a permeable diffusing-parcelling material prepared by laminating and bonding an oxygen-permeable resin layer onto one side of a base sheet made of a fibrous material and an adhesive or onto one adhesive-coating side of a base sheet made of a fibrous material, then laminating and bonding thereonto an oxygen-permeable resin layer and laminating and bonding a porous film of low softening point resin or a low softening point unwoven fabric onto the other side of the base sheet, said permeable diffusing-parcelling material (b) having an oxygen permeability of 10.sup.4 to 10.sup.6 ml/m.sup.2.Atm.Day and a (water vapor permeability/oxygen permeability) ratio of 0.02 H.sub.2 O mg.Atm/O.sub.2 ml! or above at 25.degree. C.Type: GrantFiled: January 31, 1995Date of Patent: April 23, 1996Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Yoshiaki Inoue, Shigeru Murabayashi, Yoshio Yoshikawa, Takeshi Nagasaka, Yoshihiko Harima, Isamu Yoshino
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Patent number: 5497937Abstract: A flux-free method for bonding a member which is at least partially metallic to another member is provided including preserving the at least partially metallic member in a container having a low gas permeability, together with a packet containing a rust-proof composition; and bonding the at least partially metallic member with the other member by using a filler material.Type: GrantFiled: August 26, 1994Date of Patent: March 12, 1996Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Yoshio Yoshikawa, Yoshiaki Inoue, Isamu Yoshino, Teruo Takeuchi
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Patent number: 5415907Abstract: Disclosed are an inhibitor parcel including (a) a composition including an unsaturated fatty acid compound as its main ingredient and (b) a permeable diffusing-parcelling material prepared by laminating and bonding an oxygen-permeable resin layer onto one side of a base sheet made of a fibrous material and an adhesive or onto one adhesive-coating side of a base sheet made of a fibrous material, then laminating and bonding thereonto an oxygen-permeable resin layer and laminating and bonding a porous film of low softening point resin or a low softening point nonwoven fabric onto the other side of the base sheet, the permeable diffusing-parcelling material (b) having an oxygen permeability of 10.sup.4 to 10.sup.6 ml/m.sup.2. Atm. Day and a (water vapor permeability/oxygen permeability) ratio of 0.02 [H.sub.2 O mg.Atm/O.sub.2 ml] or above at 25.degree. C.Type: GrantFiled: October 18, 1990Date of Patent: May 16, 1995Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Yoshiaki Inoue, Shigeru Murabayashi, Yoshio Yoshikawa, Takeshi Nagasaka, Yoshihiko Harima, Isamu Yoshino
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Patent number: 5305948Abstract: The solder bonding is conducted by applying a postflux, which contains halogen compounds in the ratio of 0.2% or less as the amount of halogen, over a metal surface, which is the portion to be bonded by solder, of a member including metal accommodated in a gas-impermeable container in a hermetically sealed manner together with a rust-proof agent packet. The method of the present invention prevents, in an extremely simple way and at a low cost, the oxidation of the metal surface by retaining the member including the metal under a reductive atmosphere in which no oxygen, moisture or corrosive substances actually exist, and in which reductive gas co-exists with the material including the metal member, and the use of the flux containing a small amount of halogen easily enables good bonding properties of the solder. Accordingly, it is unnecessary to remove the flux by organic halogen based solvents after the solder bonding, the cleaning steps may be simplified and cost reduction may be promoted.Type: GrantFiled: May 27, 1993Date of Patent: April 26, 1994Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Yoshio Yoshikawa, Yoshiaki Inoue, Teruo Takeuchi, Kazuo Fujinami
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Patent number: 4349509Abstract: An oxygen indicator adapted for printing or coating which comprises (a) at least one reducing agent, (b) a dyestuff causing color change when it is reduced with the reducing agent, (c) at least one thickening agent and (d) at least one solvent and a sheet-like oxygen indicator in which a composition comprising the above four components (a)-(d) is coated or printed on a substrate are disclosed.Type: GrantFiled: June 27, 1980Date of Patent: September 14, 1982Assignee: Mitsubishi Gas Chemical Co., Inc.Inventors: Yoshio Yoshikawa, Takanari Nawata, Mikio Goto, Yukio Kondo
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Patent number: 4192773Abstract: An oxygen absorbent comprising (a) metal halide-coated metal powder having at least one metal halide coated on the surface of at least one metal powder, the amount of metal halide coated being in the range of from about 0.001 part to about 10 parts by weight per 100 parts by weight of the metal powder, and the water content of the metal halide-coated metal powder being less than 1% by weight on the basis of total weight of the metal halide-coated metal powder an (b) a water-containing material and a process for producing the same are disclosed.Type: GrantFiled: August 17, 1978Date of Patent: March 11, 1980Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Yoshio Yoshikawa, Takanari Nawata, Akira Amemiya, Toshio Komatsu, Yoshiaki Inoue, Megumu Yuyama
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Patent number: 4169811Abstract: An oxygen indicator comprising at least one dyestuff, at least one alkaline substance and at least one reducing agent is disclosed.Type: GrantFiled: March 15, 1978Date of Patent: October 2, 1979Assignee: Mitsubishi Gas Chemical Co., Inc.Inventors: Yoshio Yoshikawa, Takanari Nawata, Mikio Goto, Yuichi Fujii
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Patent number: 4127503Abstract: An oxygen absorbent comprising a metal powder and a metal halide coated thereon is disclosed.Type: GrantFiled: July 15, 1977Date of Patent: November 28, 1978Assignee: Mitsubishi Gas Chemical Company, IncInventors: Yoshio Yoshikawa, Akira Amemiya, Toshio Komatsu, Yoshiaki Inoue, Megumu Yuyama
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Patent number: 4113652Abstract: An oxygen absorbent comprising at least one alkaline earth metal sulfite, at least one ferrous compound and free water is disclosed.Type: GrantFiled: December 17, 1976Date of Patent: September 12, 1978Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Yoshio Yoshikawa, Akira Amemiya, Toshio Komatsu, Yoshiaki Inoue, Megumu Yuyama
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Patent number: 4104192Abstract: An oxygen absorbent comprising a dithionite and at least one compound having water of crystallization or water of hydration is disclosed.Type: GrantFiled: January 19, 1977Date of Patent: August 1, 1978Assignee: Mitsubishi Gas Chemical Company Inc.Inventors: Yoshio Yoshikawa, Akira Amemiya, Sigeru Kimoto, Hidenori Kimpara
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Patent number: 3962073Abstract: A process for treating a waste liquor from a hydrosulfite process by an activated sludge process is improved by aerating the waste in the presence of a metal ion before the activated sludge process.Type: GrantFiled: August 9, 1974Date of Patent: June 8, 1976Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Yoshio Yoshikawa, Sadao Otsuka, Akira Amemiya, Toshio Komatsu