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).

  • Publication number: 20210131936
    Abstract: 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: Application
    Filed: September 30, 2020
    Publication date: May 6, 2021
    Applicant: SHIMADZU CORPORATION
    Inventors: Hajime TOMITA, Kiminori Sato, Satoshi Shimizu, Kaori Nishibata
  • Patent number: 9556302
    Abstract: 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: Grant
    Filed: July 11, 2012
    Date of Patent: January 31, 2017
    Assignee: 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
  • Patent number: 9328186
    Abstract: 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: Grant
    Filed: February 28, 2011
    Date of Patent: May 3, 2016
    Assignee: NIPPON A&L INC.
    Inventors: Hajime Tomita, Takayoshi Fujiwara, Shunsaku Kubota, Suguru Koba
  • Publication number: 20140147660
    Abstract: 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: Application
    Filed: July 11, 2012
    Publication date: May 29, 2014
    Applicant: 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
  • Publication number: 20120322945
    Abstract: 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: Application
    Filed: February 28, 2011
    Publication date: December 20, 2012
    Applicant: NIPPON A&L INC.
    Inventors: Hajime Tomita, Takayoshi Fujiwara, Shunsaku Kubota, Suguru Koba
  • Publication number: 20110224355
    Abstract: 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: Application
    Filed: September 9, 2009
    Publication date: September 15, 2011
    Applicant: NIPPON A&L INC.
    Inventors: Hajime Tomita, Tokuo Tatsuda, Tetsuya Yamamoto, Seiji Tamai
  • Patent number: 6754964
    Abstract: 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: Grant
    Filed: March 29, 2002
    Date of Patent: June 29, 2004
    Assignee: DiaTop Corporation
    Inventors: Hideo Sugihara, Hajime Tomita
  • Publication number: 20020170183
    Abstract: 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: Application
    Filed: March 29, 2002
    Publication date: November 21, 2002
    Inventors: Hideo Sugihara, Hajime Tomita
  • Patent number: 5924205
    Abstract: 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: Grant
    Filed: July 24, 1997
    Date of Patent: July 20, 1999
    Assignee: Diatop Corporation
    Inventors: Tomohito Sugihara, Hajime Tomita
  • Patent number: 5526572
    Abstract: 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: Grant
    Filed: March 4, 1994
    Date of Patent: June 18, 1996
    Assignee: Diatop Corporation
    Inventors: Hideo Sugihara, Hajime Tomita
  • Patent number: 5522141
    Abstract: 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: Grant
    Filed: March 4, 1994
    Date of Patent: June 4, 1996
    Assignee: Diatop Corporation
    Inventors: Hideo Sugihara, Hajime Tomita
  • Patent number: 5522140
    Abstract: 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: Grant
    Filed: March 4, 1994
    Date of Patent: June 4, 1996
    Assignee: Diatop Corporation
    Inventors: Hideo Sugihara, Hajime Tomita
  • Patent number: 5311665
    Abstract: 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: Grant
    Filed: December 30, 1992
    Date of Patent: May 17, 1994
    Assignee: Diatop Corporation
    Inventors: Hideo Sugihara, Hajime Tomita
  • Patent number: 5293692
    Abstract: 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: Grant
    Filed: December 29, 1992
    Date of Patent: March 15, 1994
    Assignee: Diatop Corporation
    Inventors: Hideo Sugihara, Hajime Tomita
  • Patent number: 5293691
    Abstract: 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: Grant
    Filed: December 29, 1992
    Date of Patent: March 15, 1994
    Assignee: Diatop Corporation
    Inventors: Hideo Sugihara, Hajime Tomita
  • Patent number: 5222301
    Abstract: 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: Grant
    Filed: November 15, 1991
    Date of Patent: June 29, 1993
    Assignee: Diatop Corporation
    Inventors: Hideo Sugihara, Hajime Tomita
  • Patent number: 5019164
    Abstract: 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: Grant
    Filed: May 9, 1990
    Date of Patent: May 28, 1991
    Assignee: Kabushiki Kaisha Pilot
    Inventors: Hajime Tomita, Yasuo Sonoda
  • Patent number: 5017224
    Abstract: 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: Grant
    Filed: June 21, 1990
    Date of Patent: May 21, 1991
    Assignee: Kabushiki Kaisha Pilot
    Inventors: Hajime Tomita, Yasuo Sonoda
  • Patent number: D439118
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: March 20, 2001
    Inventor: Hajime Tomita
  • Patent number: D439813
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: April 3, 2001
    Assignee: Diatop Corporation
    Inventor: Hajime Tomita