Patents by Inventor Kenji Nagaoka

Kenji Nagaoka 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).

  • Patent number: 11973187
    Abstract: A lithium polymer battery is provided. The lithium polymer battery includes a laminate film as an exterior material including a metal foil. The lithium polymer battery further includes a first electrode including the metal foil and a first electrode active material layer provided on the metal foil; a second electrode including a second electrode current collector and a second electrode active material layer provided on the second electrode current collector, and a polymer electrolyte provided at an interface between the metal foil 11 and the first electrode active material layer.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: April 30, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Koji Hattori, Shuichi Nagaoka, Kenji Oshima
  • Publication number: 20230016208
    Abstract: In a case where the coating film is confirmed to remain in a third step, at least one or more of conditions of the shot peening treatment including a propelling speed of the shot medium, a propelling time of the shot medium, a material of the shot medium, and an average particle diameter of the shot medium are changed and the second step and the third step are repeated until the coating film does not remain In a case where the coating film is not confirmed to remain in the third step, the condition of the shot peening treatment in the second step in which the coil spring is obtained with no remaining coating film is determined as the propelling condition for the shot medium.
    Type: Application
    Filed: September 16, 2022
    Publication date: January 19, 2023
    Applicants: Hitachi Astemo, Ltd., HONDA MOTOR CO., LTD.
    Inventors: Hirokatsu KAMEDA, Toshihiro OGAWA, Shinji KASATORI, Hideki KATO, Keiichi MAEKAWA, Kentaro TOKITA, Kenji NAGAOKA, Atsushi MURAKAMI
  • Publication number: 20230014164
    Abstract: A coil spring jig includes a spring support portion where one end of a coil spring is capable of being placed, a plurality of displacement regulating portions extending along an axis of the coil spring from the spring support portion with the coil spring supported by the spring support portion as a reference, capable of abutting against an outer peripheral surface of the coil spring, and regulating displacement of the coil spring in a radial direction of the coil spring, and a lid portion supported by the displacement regulating portions and capable of keeping the coil spring in a compressed state by sandwiching the coil spring together with the spring support portion.
    Type: Application
    Filed: September 15, 2022
    Publication date: January 19, 2023
    Applicants: Hitachi Astemo, Ltd., HONDA MOTOR CO., LTD.
    Inventors: Hirokatsu KAMEDA, Toshihiro OGAWA, Shinji KASATORI, Atsushi MURAKAMI, Hideki KATO, Kenji NAGAOKA
  • Patent number: 5686539
    Abstract: The present invention relates to a resin composition comprising (A) polyphenylene ether, (B) polyarylene sulfide and (C) polyisocyanate, wherein the polyisocyanate is an organic compounds having the general formula: ##STR1## wherein n is an integer of 1 or more.
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: November 11, 1997
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kenji Nagaoka, Satoru Gotoh
  • Patent number: 5635570
    Abstract: A resin composition prepared by simultaneously melting and kneading (A) a polyphenylene ether resin, (B) a polyarylene sulfide resin and (C) a functional compound having a bond or a functional group selected from the group consisting of non-aromatic carbon-carbon multiple bond, oxirane group and derived-carboxyl group and subsequently mixing thereinto (D) a polar compound having, in on molecule, at least two polar groups selected from the group consisting of derived-carboxyl group, derived-hydroxyl group, derived-amino group, derived-mercapto group, derived-sulfonic acid group, oxazoline group, cyanamide group, isocyanate group and oxirane group, provided that at least one of the polar groups is different from at least one of the functional groups which the functional compound (C) has.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: June 3, 1997
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hiroomi Abe, Kenji Nagaoka, Takashi Sanada
  • Patent number: 5587427
    Abstract: A resin composition prepared by melting and kneading (A) a thermoplastic resin comprising a polyolefin resin together with (B) a functional compound having one or more bond(s) or one or more functional group(s) selected from the group consisting of non-aromatic carbon-carbon multiple bonds, oxirane groups and substituted carboxyl groups, and subsequently mixing thereinto (C) a polar compound having in one molecule one or more polar group(s) selected from the group consisting of substituted carboxyl groups, substituted hydroxyl groups, substituted amino groups, substituted mercapto groups, substituted sulfonic acid groups, oxazoline groups, isocyanato groups and oxirane groups, provided that at least one of the polar groups of (C) is different from at least one of the functional groups of the functional compound (B), as well as a process for producing said resin composition.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: December 24, 1996
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hiroomi Abe, Kenji Nagaoka, Takashi Sanada
  • Patent number: 5585437
    Abstract: The present invention relates to a thermoplastic resin composition which comprises (C) 0.1 through 30 parts by weight of an adduct of alkylene oxide with a saponified copolymer of ethylene and vinyl ester of saturated carboxylic acid based on 100 parts by weight of a mixture of a crystalline thermoplastic resin (A) and a polyphenylene ether resin (B).In the resin composition, the crystalline thermoplastic resin (A) forms a continuous phase and the polyphenylene ether resin (B) forms a dispersed phase.The present invention provides a novel thermoplastic resin composition containing a polyphenylene ether resin, which has excellent flow properties, impact resistance and heat resistance.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: December 17, 1996
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tadayuki Ohmae, Sumio Hara, Hiroomi Abe, Kenji Nagaoka
  • Patent number: 5561199
    Abstract: A resin composition having an excellent impact property comprising a polyphenylene ether and a polyarylene sulfide is provided. The resin composition comprises (A) a polyphenylene ether and (B) a polyarylene sulfide having the terminal SM group (wherein M is hydrogen or an alkali metal) of at least 5.times.10.sup.-6 gram equivalents/g.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: October 1, 1996
    Assignee: Sumitomo Chemical Company, Ltd.
    Inventors: Kenji Nagaoka, Satoru Gotoh
  • Patent number: 5561186
    Abstract: A resin composition having an improved recycling property comprising;(a) from 5 to 95 parts by weight of a poly-phenylene ether,(b) from 95 to 5 parts by weight of a polyamide,(c) from 0 to 30 parts by weight per 100 parts by weight of [(a)+(b)] of a compatibilizing agent,(d) from 0.001 to 10 parts by weight per 100 parts by weight of [(a)+(b)] of an alkali earth metal oxide,(e) from 0 to 100 parts by weight per 100 parts by weight of [(a)+(b)] of a rubbery material, and(f) from 0 to 200 parts by weight per 100 parts by weight of [(a)+(b)] of an inorganic filler.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 1, 1996
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kenji Nagaoka, Kaoru Kitadono, Yasuro Suzuki
  • Patent number: 5554677
    Abstract: A blow-molded article made from a polyphenylene ether/polyamide composition reinforced with glass fibers is provided. The article is excellent in mechanical properties and blow moldability. The composition comprises a mixture consisting of (A) 10-65 parts by weight of a polyphenylene ether and (B) 90-35 parts by weight of a polyamide and, on the basis of 100 parts by weight of said mixture, (C) 10-100 parts by weight of a glass fiber, (D) 1-35 parts by weight of a polyolefin and (E) 0.01-10 parts by weight of an unsaturated polar monomer compound having in its molecule both (a) carbon-carbon double bond or carbon-carbon triple bond and (b) carboxyl group, acid anhydride group, amino group, acid amide group, imide group, epoxy group, carboxylic acid ester group, isocyanate group, methylol group or hydroxyl group as a compatibilizing agent, amounts of (C), (D) and (E) being based on 100 parts by weight of [(A)+(B)].
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: September 10, 1996
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kenji Nagaoka, Hiroshi Hagimori, Kaoru Kitadono
  • Patent number: 5523342
    Abstract: The invention describes a thermoplastic composition made of a continuous phase made of crystalline thermoplastic resin A, a dispersed phase made of polyphenylene ether resin B, and an amide compound C represented by formula 1,R.sub.4 --CONH--R.sub.2 --HNOC--R.sub.1 --CONH--R.sub.3 --HNOC--R.sub.5(1)wherein R.sub.1, R.sub.2, and R.sub.3 represent divalent hydrocarbon groups, which may be identical or different, and R.sub.4 and R.sub.5 represent monovalent hydrocarbon groups, which may be identical or different. The amide compound is present in an amount between about 0.1 and about 30 parts by weight per 100 parts by weight of the resins A and B mixed together.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: June 4, 1996
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kenji Nagaoka, Kaoru Kitadono
  • Patent number: 5506305
    Abstract: Disclosed is a thermoplastic resin composition comprising a polyphenylene ether and a polyamide and excellent in impact strength wherein an impact strength modifier having structure A--B--A (A or B is styrene) is partially dispersed in said polyphenylene ether and has layered or spherical structure of about 0.02-0.07 .mu.m.A process for producing the thermoplastic resin composition is also disclosed which comprises (1) previously melt kneading (i) at least one compatibilizing agent in an amount effective for compatibilization and (ii) a polyphenylene ether, and then (2) adding (iii) a polyamide in an amount necessary for formation of continuous phase and (iv) an impact strength modifier having structure A--B--A (A or B is styrene) and melt kneading the mixture at a maximum shear rate of 700 sec.sup.-1 or more.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: April 9, 1996
    Assignee: Sumitomo Chemical Company Limited
    Inventors: Kenji Nagaoka, Takashi Sanada, Yasuhito Ijichi
  • Patent number: 5478878
    Abstract: There is provided a polymer composition having improved discoloration resistance upon exposure to light comprising a polyphenylene ether, a polyamide, and a combination of (a), a inorganic filler selected from the group consisting of titanium oxide, zinc oxide, zinc sulfide, aluminum oxide, magnesium oxide, titanium oxide coated mica, and metal particles, and (b), an organic dye or pigment which bleaches upon exposure to light, in an amount effective to improve the discoloration resistance.
    Type: Grant
    Filed: September 8, 1993
    Date of Patent: December 26, 1995
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kenji Nagaoka, Hiroshi Hagimori, Yasuro Suzuki, Takashi Sanada
  • Patent number: 5475054
    Abstract: A resin composition comprising (A) a polyphenylene ether resin, (B) a polyolefin resin, and optionally (C) an elastomer, and (D) an aliphatic polycarboxylic acid derivative represented by the following general formula:(R.sub.1 O).sub.m R(COOR.sub.2).sub.n (CORN.sub.3 R.sub.4).sub.swherein R represents a saturated hydrocarbon group having 2 to 20 carbon atoms with a linear or branched chain; R.sub.1 represents a hydrogen atom or an alkyl, aryl, acyl or carbonyldioxy group having 1 to 10 carbon atoms; each R.sub.2 represents a hydrogen atom or an alkyl or aryl group having 1 to 20 carbon atoms; R.sub.3 and R.sub.4 each represents a hydrogen atom or an alkyl or aryl group having 1 to 10 carbon atoms; m represents a number equal to 1 or 2; (n+s) is larger than or equal to 2 and, n and s are each larger than or equal to 0; (OR.sub.1) is in an alpha or beta position with respect to a carbonyl group, and in which at least two carbonyl groups are separated by 2 to 6 carbon atoms.
    Type: Grant
    Filed: September 28, 1994
    Date of Patent: December 12, 1995
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hiroomi Abe, Kenji Nagaoka, Takashi Sanada
  • Patent number: 5464891
    Abstract: The invention describes a thermoplastic composition made of a continuous phase made of crystalline thermoplastic resin A, a dispersed phase made of polyphenylene ether resin B, and an amide compound C represented by formula 1,R.sub.4 --CONH--R.sub.2 --HNOC--R.sub.1 --CONH--R.sub.3 --HNOC--R.sub.5( 1)wherein R.sub.1, R.sub.2, and R.sub.3 represent divalent hydrocarbon groups, which may be identical or different, and R.sub.4 and R.sub.5 represent monovalent hydrocarbon groups, which may be identical or different. The amide compound is present in an amount between about 0.1 and about 30 parts by weight per 100 parts by weight of the resins A and B mixed together.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: November 7, 1995
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Kenji Nagaoka, Kaoru Kitadono
  • Patent number: 5424360
    Abstract: A thermoplastic resin composition having a good balance among rigidity, impact strength and adhesion of coating is provided, which comprises:a total of 100 parts by weight of (a)-(c) wherein (a) is 1-60% by weight of a polyphenylene ether, (b) 0-60% by weight of an alkenyl aromatic resin excluding unhydrogenated alkenyl aromatic block copolymer of tile following component (e) and (c) 40-99% by weight of a polyamide,(d) 1-50 parts by weight of a polyolefin having a modulus of 10000 kg/cm2 or more at room temperature,(e) 1-50 parts by weight of an unhydrogenated alkenyl aromatic block copolymer, and(f) a compatibilizing agent in an amount necessary to improve compatibility of the above components (a) and (c), said (d)-(f) being every 100 parts by weight of (a)-(c), and wherein the thermoplastic resin composition is obtained by melt kneading firstly said (a), (d) and (f) and then secondly said (c) therewith.
    Type: Grant
    Filed: January 19, 1994
    Date of Patent: June 13, 1995
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kenji Nagaoka, Hiroshi Hagimori, Takashi Sanada
  • Patent number: 5403888
    Abstract: A novel thermoplastic resin composition excellent in heat resistance, mechanical properties and processability is provided which comprises a composition containing (A) a dispersing phase of polyphenylene ether obtained by oxidation polymerization of at least one phenol compound represented by the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 each represents a hydrogen atom, a halogen atom or a substituted or unsubstituted hydrocarbon residue and at least one of them is a hydrogen atom and (B) a crystalline thermoplastic resin matrix phase and (C) a mutual compatibilizer compatible with (A) and/or (B) , an average particle diameter in said dispersing phase having of 0.01-10 .mu..
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: April 4, 1995
    Assignee: Sumitomo Chemical Company, Ltd.
    Inventors: Taichi Nishio, Takashi Sanada, Satoru Hosoda, Kenji Nagaoka, Takayuki Okada
  • Patent number: 5352737
    Abstract: The present invention provides a resin composition which is excellent in adhesion to coatings and which comprises the following components:(a) a polyphenylene ether in an amount of 10-90 parts by weight,(b) a polyamide in an amount of 90-10 parts by weight,(c) a compatibilizing agent in an amount of 0.01-10 parts by weight based on 100 parts by weight of ((a)+(b)),(d) an unsaturated acid salt of a metal belonging to Groups I-III of the periodic table in an amount of 0.2-10 parts by weight based on 100 parts by weight of ((a)+(b)), and(e) a rubber material in an amount of 0-100 parts by weight based on 100 parts by weight of ((a)+(b)).
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: October 4, 1994
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Kenji Nagaoka, Yasuro Suzuki, Kaoru Kitadono
  • Patent number: 5336713
    Abstract: A resin composition having an excellent welding property comprising a polyphenylene ether and a polyarylene sulfide is provided. The resin composition comprises (A) a polyphenylene ether and (B) a polyarylene sulfide having a temperature-mediated crystallization (Tmc) of not greater than 225.degree. C.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: August 9, 1994
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kenji Nagaoka, Satoru Gotoh
  • Patent number: 5304593
    Abstract: A novel thermoplastic resin composition excellent in heat resistance, mechanical properties and processability is provided which comprises a composition containing (A) a dispersing phase of polyphenylene ether obtained by oxidation polymerization of at least one phenol compound represented by the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 each represents a hydrogen atom, a halogen atom or a substituted or unsubstituted hydrocarbon residue and at least one of them is a hydrogen atom and (B) a crystalline thermoplastic resin matrix phase and (C) a mutual compatibilizer compatible with (A) and/or (B), an average particle diameter in said dispersing phase having of 0.01-10.mu..
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: April 19, 1994
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Taichi Nishio, Takashi Sanada, Satoru Hosoda, Kenji Nagaoka, Takayuki Okada