Patents by Inventor Hajime Tomita
Hajime Tomita 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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Publication number: 20210131936Abstract: A thermal analyzer includes heating section including a heating furnace in which a sample is contained, and a weight measurement section configured to measure a weight of the sample. The weight of the sample is measured by the weight measurement section while the sample is heated by the heating section. The thermal analyzer further includes: a light emitting indicator that is provided in front of the exterior of the thermal analyzer, and includes a plurality of light emitting diode elements; an analysis controller configured to control heating by the heating section in accordance with a predetermined measurement program, and to acquire weight data of the sample from the weight measurement section in a predetermined time period; and an indication controller configured to drive the light emitting indicator to flash at least during a time period in which the weight data is acquired.Type: ApplicationFiled: September 30, 2020Publication date: May 6, 2021Applicant: SHIMADZU CORPORATIONInventors: Hajime TOMITA, Kiminori Sato, Satoshi Shimizu, Kaori Nishibata
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Patent number: 9556302Abstract: Provided is a thermoplastic resin composition having excellent weather resistance, impact resistance, and fluidity and also excellent color developing properties and residence heat stability. A graft copolymer (A) prepared by graft polymerization of a certain amount of a specific monomer (a2)onto a certain amount of composite rubber (a1) composed of a conjugated diene rubber polymer and a cross-linked acrylic ester polymer. The tetrahydrofuran-soluble portion of the composite rubber (a1) has a weight-average molecular weight of 50000 or more in terms of polystyrene and a degree of swelling in toluene of 7.0 or more, or in the composite rubber contained in the graft copolymer, the number of particles having an equivalent-circle diameter of 150 nm or less is 50% or less of the total number of the composite rubber particles.Type: GrantFiled: July 11, 2012Date of Patent: January 31, 2017Assignee: NIPPON A&L INC.Inventors: Takumi Miyahiro, Masanori Ito, Seiji Tamai, Fumitoshi Takeda, Kazunori Takahashi, Tomoyoshi Akiyama, Hajime Tomita, Haruki Okuno, Shunsaku Kubota, Masaaki Okada, Atsushi Hashimoto, Yoshiaki Takada, Nobuyuki Nakashima, Jiichiro Yoshida, Takayoshi Fujiwara, Shouta Kosaka
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Patent number: 9328186Abstract: A thermoplastic resin composition for vehicle lamp housings, includes: 5 to 80 parts by weight of a graft copolymer (A) obtained by graft polymerizing at least one monomer (a-2) selected from the group consisting of aromatic vinyl-based monomers, vinyl cyanide-based monomers, and (meth)acrylic ester-based monomers and maleimide-based monomers, under the presence of an acrylic ester-based rubbery polymer (a-1) having a weight average particle size of 100 to 400 nm; and 20 to 95 parts by weight of a (co)polymer (B) in which at least one monomer (a-2) selected from the group consisting of aromatic vinyl-based monomers, vinyl cyanide-based monomers, (meth)acrylic ester-based monomers and maleimide-based monomers is polymerized, in which a content of total volatiles at 260° C. is no more than 0.7% by weight of the composition overall, and a content of oligomer component having a weight average molecular weight of 200 to 1000 is no more than 0.3% by weight of the composition overall.Type: GrantFiled: February 28, 2011Date of Patent: May 3, 2016Assignee: NIPPON A&L INC.Inventors: Hajime Tomita, Takayoshi Fujiwara, Shunsaku Kubota, Suguru Koba
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Publication number: 20140147660Abstract: Provided is a thermoplastic resin composition having excellent weather resistance, impact resistance, and fluidity and also excellent color developing properties and residence heat stability. A graft copolymer (A) prepared by graft polymerization of a certain amount of a specific monomer (a2) onto a certain amount of composite rubber (a1) composed of a conjugated diene rubber polymer and a cross-linked acrylic ester polymer. The tetrahydrofuran-soluble portion of the composite rubber (a1) has a weight-average molecular weight of 50000 or more in terms of polystyrene and a degree of swelling in toluene of 7.0 or more, or in the composite rubber contained in the graft copolymer, the number of particles having an equivalent-circle diameter of 150 nm or less is 50% or less of the total number of the composite rubber particles.Type: ApplicationFiled: July 11, 2012Publication date: May 29, 2014Applicant: NIPPON A&L INC.Inventors: Takumi Miyahiro, Masanori Ito, Seiji Tamai, Fumitoshi Takeda, Kazunori Takahashi, Tomoyoshi Akiyama, Hajime Tomita, Haruki Okuno, Shunsaku Kubota, Masaaki Okada, Atsushi Hashimoto, Yoshiaki Takada, Nobuyuki Nakashima, Jiichiro Yoshida, Takayoshi Fujiwara, Shouta Kosaka
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Publication number: 20120322945Abstract: A thermoplastic resin composition for vehicle lamp housings, includes: 5 to 80 parts by weight of a graft copolymer (A) obtained by graft polymerizing at least one monomer (a-2) selected from the group consisting of aromatic vinyl-based monomers, vinyl cyanide-based monomers, and (meth)acrylic ester-based monomers and maleimide-based monomers, under the presence of an acrylic ester-based rubbery polymer (a-1) having a weight average particle size of 100 to 400 nm; and 20 to 95 parts by weight of a (co)polymer (B) in which at least one monomer (a-2) selected from the group consisting of aromatic vinyl-based monomers, vinyl cyanide-based monomers, (meth)acrylic ester-based monomers and maleimide-based monomers is polymerized, in which a content of total volatiles at 260° C. is no more than 0.7% by weight of the composition overall, and a content of oligomer component having a weight average molecular weight of 200 to 1000 is no more than 0.3% by weight of the composition overall.Type: ApplicationFiled: February 28, 2011Publication date: December 20, 2012Applicant: NIPPON A&L INC.Inventors: Hajime Tomita, Takayoshi Fujiwara, Shunsaku Kubota, Suguru Koba
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Publication number: 20110224355Abstract: The present invention provides a thermoplastic resin composition for a vehicular lamp housing, which is excellent in balance of physical properties with regard to such as impact resistance and fluidity, and of which hot plate weldability, vibration weldability and laser weldability are improved when a vehicular lamp housing is welded with other members.Type: ApplicationFiled: September 9, 2009Publication date: September 15, 2011Applicant: NIPPON A&L INC.Inventors: Hajime Tomita, Tokuo Tatsuda, Tetsuya Yamamoto, Seiji Tamai
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Patent number: 6754964Abstract: A mowing head includes a case, which is detachably attached to a rotary shaft located at a distal end of a manipulating rod of a mower, and a weed cutting tool, which is attached to the case. The bottom portion of the case is formed of resin. A protecting member is arranged in the bottom portion and insert molded using a material having an anti-wear resistance characteristic that is superior to that of the resin.Type: GrantFiled: March 29, 2002Date of Patent: June 29, 2004Assignee: DiaTop CorporationInventors: Hideo Sugihara, Hajime Tomita
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Publication number: 20020170183Abstract: A mowing head includes a case, which is detachably attached to a rotary shaft located at a distal end of a manipulating rod of a mower, and a weed cutting tool, which is attached to the case. The bottom portion of the case is formed of resin. A protecting member is arranged in the bottom portion and insert molded using a material having an anti-wear resistance characteristic that is superior to that of the resin.Type: ApplicationFiled: March 29, 2002Publication date: November 21, 2002Inventors: Hideo Sugihara, Hajime Tomita
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Patent number: 5924205Abstract: A protection cover for a trimmer is disclosed. The protection cover includes a protection portion that is comprised of plural elastic members. The protection portion prevent chips such as grasses trimmed or small stones inside of the cover. Each of the elastic members is shaped to a strip in an embodiment. The protection cover also includes a member of adjusting a vertical position of the protection portion.Type: GrantFiled: July 24, 1997Date of Patent: July 20, 1999Assignee: Diatop CorporationInventors: Tomohito Sugihara, Hajime Tomita
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Patent number: 5526572Abstract: A cutting head for a cord-type mower driven by an engine is disclosed. The cutting head includes a rotor capable of rotating about an axis and a bobbin with a cord wound on it. The bobbin can rotate relatively to the rotor about the axis in the rotor. The cutting head includes two types of cord feeding systems. The first cord feeding system automatically feeds a cord in response to cord wear. The second cord feeding system feeds a cord in response to a manual tapping operation executed during driving of the cutting head. The second cord feeding system disconnects one of the bobbin and rotor from the engine in response to the tapping operation.Type: GrantFiled: March 4, 1994Date of Patent: June 18, 1996Assignee: Diatop CorporationInventors: Hideo Sugihara, Hajime Tomita
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Patent number: 5522141Abstract: A cutting head for a cord-type mower driven by an engine is disclosed. The cutting head includes a rotor capable of rotating about an axis and a bobbin with a cord wound on it. The bobbin can rotate relatively to the rotor about the axis in the rotor. The cutting head includes two types of cord feeding systems. The first cord feeding system automatically feeds a cord in response to cord wear. The second cord feeding system feeds a cord in response to a manual tapping operation executed during driving of the cutting head. The second cord feeding system disconnects one of the bobbin and rotor from the engine in response to the tapping operation.Type: GrantFiled: March 4, 1994Date of Patent: June 4, 1996Assignee: Diatop CorporationInventors: Hideo Sugihara, Hajime Tomita
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Patent number: 5522140Abstract: A cutting head for a cord-type mower driven by an engine is disclosed. The cutting head includes a rotor capable of rotating about an axis and a bobbin with a cord wound on it. The bobbin can rotate relatively to the rotor about the axis in the rotor. The cutting head includes two types of cord feeding systems. The first cord feeding system automatically feeds a cord in response to cord wear. The second cord feeding system feeds a cord in response to a manual tapping operation executed during driving of the cutting head. The second cord feeding system disconnects one of the bobbin and rotor from the engine in response to the tapping operation.Type: GrantFiled: March 4, 1994Date of Patent: June 4, 1996Assignee: Diatop CorporationInventors: Hideo Sugihara, Hajime Tomita
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Patent number: 5311665Abstract: A cutting head for a cord-type mower driven by an engine is disclosed. The cutting head includes a rotor capable of rotating about an axis and a bobbin with a cord wound on it. The bobbin can rotate relatively to the rotor about the axis in the rotor. The cutting head includes two types of cord feeding systems. The first cord feeding system automatically feeds a cord in response to cord wear. The second cord feeding system feeds a cord in response to a manual tapping operation executed during driving of the cutting head. The second cord feeding system disconnects one of the bobbin and rotor from the engine in response to the tapping operation.Type: GrantFiled: December 30, 1992Date of Patent: May 17, 1994Assignee: Diatop CorporationInventors: Hideo Sugihara, Hajime Tomita
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Patent number: 5293692Abstract: A cutting head for a cord-type mower driven by an engine is disclosed. The cutting head includes a rotor capable of rotating about an axis and a bobbin with a cord wound on it. The bobbin can rotate relatively to the rotor about the axis in the rotor. The cutting head includes two types of cord feeding systems. The first cord feeding system automatically feeds a cord in response to cord wear. The second cord feeding system feeds a cord in response to a manual tapping operation executed during driving of the cutting head. The second cord feeding system disconnects one of the bobbin and rotor from the engine in response to the tapping operation.Type: GrantFiled: December 29, 1992Date of Patent: March 15, 1994Assignee: Diatop CorporationInventors: Hideo Sugihara, Hajime Tomita
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Patent number: 5293691Abstract: A cutting head for a cord-type mower driven by an engine is disclosed. The cutting head includes a rotor capable of rotating about an axis and a bobbin with a cord wound on it. The bobbin can rotate relatively to the rotor about the axis in the rotor. The cutting head includes two types of cord feeding systems. The first cord feeding system automatically feeds a cord in response to cord wear. The second cord feeding system feeds a cord in response to a manual tapping operation executed during driving of the cutting head. The second cord feeding system disconnects one of the bobbin and rotor from the engine in response to the tapping operation.Type: GrantFiled: December 29, 1992Date of Patent: March 15, 1994Assignee: Diatop CorporationInventors: Hideo Sugihara, Hajime Tomita
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Patent number: 5222301Abstract: A cutting head for a cord-type mower driven by an engine is disclosed. The cutting head includes a rotor capable of rotating about an axis and a bobbin with a cord wound on it. The bobbin can rotate relatively to the rotor about the axis in the rotor. The cutting head includes two types of cord feeding systems. The first cord feeding system automatically feeds a cord in response to cord wear. The second cord feeding system feeds a cord in response to a manual tapping operation executed during driving of the cutting head. The second cord feeding system disconnects one of the bobbin and rotor from the engine in response to the tapping operation.Type: GrantFiled: November 15, 1991Date of Patent: June 29, 1993Assignee: Diatop CorporationInventors: Hideo Sugihara, Hajime Tomita
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Patent number: 5019164Abstract: A water resistant ink composition is disclosed having a greatly improved water resistance and being excellent in resistance to drying-up, age stability and smooth ink flowability containing a mixture of polyamine compound having only primary amino groups and a molecular weight of 300 or more and a polyamine having primary amino groups removed therefrom, that is, having only secondary and/or tertiary amino groups and a molecular weight of 300 or more and combined with an anionic dye and a stabilizing agent such as urea or the like.Type: GrantFiled: May 9, 1990Date of Patent: May 28, 1991Assignee: Kabushiki Kaisha PilotInventors: Hajime Tomita, Yasuo Sonoda
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Patent number: 5017224Abstract: An aqueous ink composition is disclosed having high water resistance and excellent age stability and resistance to drying-up. A feature of the present invention resides in a water resistant ink composition comprising an aqueous vehicle which contains a polyamine containing primary amino groups in the proportion of 3-20% of amino groups contained in a molecule, one, two or more stabilizing agent selected from urea, thiourea, ethylene urea, hydroxyethyl urea, hydroxypropyl urea, ethylene, thiourea, diethyl thiourea, 2-pyrrolidone, polyvinyl pyrrolidone, sorbitol, dimethylsulfone and mixtures thereof and water and an anionic dye having a solubility of 10% by weight or more in said aqueous vehicle.Type: GrantFiled: June 21, 1990Date of Patent: May 21, 1991Assignee: Kabushiki Kaisha PilotInventors: Hajime Tomita, Yasuo Sonoda
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Patent number: D439118Type: GrantFiled: August 28, 2000Date of Patent: March 20, 2001Inventor: Hajime Tomita
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Patent number: D439813Type: GrantFiled: September 29, 1999Date of Patent: April 3, 2001Assignee: Diatop CorporationInventor: Hajime Tomita