Patents by Inventor Akitoshi Ito
Akitoshi Ito 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: 11092638Abstract: An impulse tester according to the present invention includes a first terminal, a second terminal, a voltage generation circuit, and an oscillation suppression circuit. The oscillation suppression circuit includes a discharge switch and a capacitor. The discharge switch has a first electrode and a second electrode. The first electrode is connected to the first terminal. The second electrode is disposed at a spacing from the first electrode. The discharge switch becomes conductive when a voltage difference between the first electrode and the second electrode is greater than a discharge voltage corresponding to the spacing between the first electrode and the second electrode. The capacitor is connected between the second electrode and the second terminal.Type: GrantFiled: June 30, 2017Date of Patent: August 17, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Akitoshi Ito, Kazuaki Aono
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Publication number: 20200182922Abstract: An impulse tester according to the present invention includes a first terminal, a second terminal, a voltage generation circuit, and an oscillation suppression circuit. The oscillation suppression circuit includes a discharge switch and a capacitor. The discharge switch has a first electrode and a second electrode. The first electrode is connected to the first terminal. The second electrode is disposed at a spacing from the first electrode. The discharge switch becomes conductive when a voltage difference between the first electrode and the second electrode is greater than a discharge voltage corresponding to the spacing between the first electrode and the second electrode. The capacitor is connected between the second electrode and the second terminal.Type: ApplicationFiled: June 30, 2017Publication date: June 11, 2020Applicant: Mitsubishi Electric CorporationInventors: Akitoshi ITO, Kazuaki AONO
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Publication number: 20070015702Abstract: The present invention relates to a method of treating and/or preventing neuropathic pain, comprising administering calcitonin continuously. The present invention can provide a drug effective for the treatment of various neuropathic pains. Providing a drug having an action effective on neuropathic pain and having low toxicity. An agent for treating and/or preventing neuropathic pain comprising calcitonin, particularly elcatonin, as an active ingredient, wherein calcitonin is administered in an amount not altering serum calcium value, and use of calcitonin, particularly elcatonin, for producing an agent for treating and/or preventing neuropathic pain.Type: ApplicationFiled: June 7, 2006Publication date: January 18, 2007Applicant: Asahi Kasei Pharma CorporationInventors: Akitoshi Ito, Mineko Takeda
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Patent number: 5266634Abstract: A resin composition containing a mixture of a polycarbonate resin and a rubber-reinforced styrene base resin which is prepared by polymerizing, in the presence of a rubbery polymer, a monomer mixture of an aromatic vinyl monomer, at least one of cyanated vinyl monomers and alkyl esters of unsaturated carboxylic acids and at least one other vinyl monomer; a polyolefin graft polymer which is prepared by polymerizing, in the presence of a crystalline polyolefin, a monomer of an aromatic vinyl monomer and at least one of cyanated vinyl monomers and alkyl esters of unsaturated carboxylic acids; and optionally a terpolymer of an olefin, an unsaturated dicarboxylic anhydride and an alkyl ester of an unsaturated carboxylic acid or an epoxy group-containing olefin copolymer of an unsaturated epoxy compound, an olefin and optionally an ethylenically unsaturated compound, which composition has good coating properties.Type: GrantFiled: November 20, 1991Date of Patent: November 30, 1993Assignee: Sumitomo Naugatuck Co., Ltd.Inventors: Akitoshi Ito, Yutaka Yoshida
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Patent number: 4900787Abstract: A thermoplastic resin composition affording a delustered shaped article which comprises (A) a rubber-modified copolymer with (B) an epoxy group-containing olefin polymer or an unsaturated carboxylic acid-modified olefin polymer (B').Type: GrantFiled: September 7, 1988Date of Patent: February 13, 1990Assignee: Sumitomo Naugatuck Co., Ltd.Inventors: Hajime Sakano, Akitoshi Ito, Motoichi Yano, Yasuhiro Honda, Takayoshi Fujiwara
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Patent number: 4835215Abstract: A thermoplastic resin composition affording a delustered shaped article which comprises (A) a rubber-modified copolymer with (B) an epoxy group-containing olefin polymer or an unsaturated carboxylic acid-modified olefin polymer (B').Type: GrantFiled: December 31, 1986Date of Patent: May 30, 1989Assignee: Sugitomo Naugatuck Co., Ltd.Inventors: Hajime Sakano, Akitoshi Ito, Motoichi Yano
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Patent number: 4705827Abstract: A thermoplastic resin composition having excellent physical properties such as heat resistance and impact resistance and being improved in resistance to heat decomposition which comprises:(A) an unsaturated dicarboxylic acid anhydride polymer produced by polymerization of (a-1) at least one unsaturated dicarboxylic acid anhydride and (a-2) at least one of aromatic vinyl compounds, unsaturated nitrile compounds and unsaturated carboxylic acid esters in the presence or absence of (a-3) at least one rubbery material,(B) a polycarbonate resin,(C) a modified olefin polymer, and optionally(D) a rubber-reinforced resin produced by polymerizing (d-1) at least one of aromatic vinyl compounds, unsaturated nitrile compounds and unsaturated carboxylic acid esters in the presence of (d-2) a rubber polymer.Type: GrantFiled: March 28, 1986Date of Patent: November 10, 1987Assignee: Sumitomo Naugatuck Co., Ltd.Inventors: Mikio Kodama, Akitoshi Ito, Motoichi Yano, Takayoshi Fujiwara, Satoshi Umeyama
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Patent number: 4657975Abstract: A thermoplastic resin composition having high heat resistance and good impact resistance, which comprises (A) at least one unsaturated dicarboxylic acid anhydride polymer obtainable by polymerizing at least one unsaturated dicarboxylic acid anhydride and at least one aromatic vinyl compound with or without at least one other polymerizable monomer in the presence or absence of a rubbery material and (B) at least one olefin polymer chosen from (B-1) an olefin/alkyl unsaturated carboxylate copolymer, (B-2) an unsaturated carboxylic acid-modified olefin polymer and (B-3) an epoxy group-containing olefin polymer, the weight proportion of the unsaturated dicarboxylic acid anhydride polymer (A) and the olefin polymer (B) being 100:1-100.Type: GrantFiled: October 16, 1985Date of Patent: April 14, 1987Assignee: Sumitomo Naugatuck Co., Ltd.Inventors: Mikio Kodama, Akitoshi Ito
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Patent number: 4554316Abstract: A thermoplastic resin composition affording a delustered shaped article which comprises (A) a rubber-modified copolymer with (B) an epoxy group-containing olefin polymer or an unsaturated carboxylic acid-modified olefin polymer (B').Type: GrantFiled: November 7, 1983Date of Patent: November 19, 1985Assignee: Sumitomo Naugatuck Co., Ltd.Inventors: Hajime Sakano, Akitoshi Ito, Motoichi Yano, Yasuhiro Honda, Takayoshi Fujiwara
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Patent number: 4490506Abstract: A thermoplastic resin composition excellent in impact resistance and moldability and improved in falling ball impact strength at a weld part which comprises (A) a polycarbonate resin having a reduced viscosity at 25.degree. C. in chloroform of 0.40 to 0.55 and (B) a diene-rubber modified resin comprising 10 to 100% by weight of a graft polymer of a diene rubber chosen from polybutadiene, styrene/butadiene copolymer and butadiene-acrylonitrile copolymer, with an aromatic vinyl compound and at least one of a vinyl cyanide and an alkyl unsaturated carboxylate grafted thereon and 90 to 0% by weight of a copolymer of an aromatic vinyl compound with at least one of a vinyl cyanide and an alkyl unsaturated carboxylate. The diene-rubber modified resin has apparent melt viscosities at 250.degree. C. of 5.times.10.sup.3 to 1.times.10.sup.5 poise at a shear rate of 10.sup.2 sec.sup.-1 and of 1.5.times.10.sup.3 to 1.times.10.sup.4 poise at a shear rate of 10.sup.3 sec.sup.Type: GrantFiled: October 7, 1983Date of Patent: December 25, 1984Assignee: Sumitomo Naugatuck Co. Ltd.Inventors: Hajime Sakano, Akitoshi Ito, Motoichi Yano, Yasuhiro Honda
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Patent number: 4444950Abstract: A thermoplastic resin composition improved in weld strength which comprises (A) a polycarbonate resin and (B) a rubber modified copolymer with (C) an epoxy group-containing olefin copolymer.Type: GrantFiled: March 1, 1983Date of Patent: April 24, 1984Assignee: Sumitomo Naugatuck Co., Ltd.Inventors: Hajime Sakano, Akitoshi Ito, Motoichi Yano, Yasuhiro Honda
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Patent number: 4438229Abstract: A thermoplastic composition which comprises a blend comprising 20 to 80% by weight of a polycarbonate resin and 80 to 20% by weight of a graft polymer obtained by grafting at least one aromatic vinyl compound and at least one of vinyl cyanides and alkyl unsaturated carboxylates onto a conjugated diene rubber or its mixture with a copolymer of at least one aromatic vinyl compound and at least one of vinyl cyanides and alky unsaturated carboxylates in an amount of not more than 90% by weight on the basis of the combined amount of the graft polymer and the copolymer, and a polyolefin or a plasticizer having a light transmission of not less than 70% when determined on the film of 20 microns in thickness prepared by the use of a solution of the plasticizer (0.25 g) and acrylonitrile-styrene copolymer (weight ratio of acrylonitrile and styrene, 30:70; 0.75 g) in acetone (10 ml), the weight proportion of the blend and the polyolefin or the plasticizer being 100:0.2-20.Type: GrantFiled: September 8, 1982Date of Patent: March 20, 1984Assignees: Sumitomo Naugatuck Co., Ltd., Honda Motor Co., Ltd.Inventors: Yoshitugu Fujimori, Yasuo Takabori, Hajime Sakano, Akitoshi Ito
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Patent number: 4317891Abstract: A thermoplastic resin composition excellent in solvent resistance, paintability and moldability which comprises a polycarbonate resin and a conjugated diene rubber copolymer comprising units of a conjugated diene rubber, an aromatic vinyl compound and at least one of vinyl cyanide compounds and optionally hydroxylated alkyl esters of unsaturated carboxylic acids in a weight proportion of 20:80 to 80:20 with a polyamide resin in an amount of 0.1 to 20 parts by weight on the basis of 100 parts by weight of the combined weight of the polycarbonate resin and the conjugated diene rubber copolymer.Type: GrantFiled: July 23, 1980Date of Patent: March 2, 1982Assignee: Sumitomo Naugatuck Co., Ltd.Inventors: Hajime Sakano, Akitoshi Ito, Miyuki Terada
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Patent number: 4299929Abstract: A thermoplastic resin composition with excellent dwelling thermal stability which comprises 100 parts by weight of a resin composition comprising a polymer (A) obtained by polymerization of at least two kinds of monomers selected from the group consisting of aromatic vinyl compounds, vinyl cyanide compounds and carboxylic acid alkyl esters in the presence of a conjugated diene rubber and a polycarbonate resin (B) in a weight proportion of from 10:90 to 90:10 and 0.05 to 5.0 parts by weight of at least one acid compound (C) chosen from inorganic acids, organic acids and organic acid anhydrides.Type: GrantFiled: July 15, 1980Date of Patent: November 10, 1981Assignee: Sumitomo Naugatuck Co., Ltd.Inventors: Hajime Sakano, Mikio Kodama, Akitoshi Ito, Miyuki Terada
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Patent number: 4179341Abstract: A method for preparation of a plated product which comprises electroplating a molded product of a resin composition comprising at least one kind of thermoplastic resin and carbon black having an oil absorption amount of not less than 200 ml/100 g and a surface area of not less than 500 m.sup.2 /g in a weight proportion of 100:3-100 and having an intrinsic volume resistivity of not more than 10.sup.3 .OMEGA..cm without previous electroless plating.Type: GrantFiled: June 12, 1978Date of Patent: December 18, 1979Assignee: Sumitomo Naugatuck Co., Ltd.Inventors: Hajime Sakano, Shigemitsu Kawagishi, Mikio Kodama, Akitoshi Ito, Toshihiro Shoji, Miyuki Terada, Isao Yoshida