Patents by Inventor Toshihiro Kasai

Toshihiro Kasai 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: 10582438
    Abstract: A base station apparatus includes a processor, a memory and a communication circuit. The processor is configured to set a waiting period in which a packet from a terminal device to which a connection has not been established is awaited. The memory is configured to store data that is processed by a terminal device to which a connection is established. The communication circuit is configured to, upon receiving a first packet from a communication terminal device in the waiting period, transmit to the communication terminal device a second packet containing the data and information used by the communication terminal device for establishing a connection.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: March 3, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Tatsuya Kikuzuki, Ichirou Ida, Kazumi Kasai, Teruhisa Ninomiya, Eiji Matsumoto, Iwamasa Yuki, Toshihiro Kunitake, Hiroki Akano
  • Patent number: 10352870
    Abstract: Improved wafer-scale testing of optoelectronic devices, such as CMOS image scan devices, is provided. A probe card includes an LED light source corresponding to each device under test in the wafer. The LED light sources provide light from a phosphor illuminated by the LED. A pinhole and lens arrangement is used to collimate the light provided to the devices under test. Uniformity of illumination can be provided by closed loop control of the LED light sources using internal optical signals as feedback signals, in combination with calibration data relating the optical signal values to emitted optical intensity. Uniformity of illumination can be further improved by providing a neutral density filter for each LED light source to improve uniformity from one source to another and/or to improve uniformity of the radiation pattern from each LED light source.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: July 16, 2019
    Assignee: FormFactor, Inc.
    Inventors: Nobuhiro Kawamata, Toshihiro Kasai, Hiromitsu Sasanami, Shigeki Mori
  • Publication number: 20180164223
    Abstract: Improved wafer-scale testing of optoelectronic devices, such as CMOS image scan devices, is provided. A probe card includes an LED light source corresponding to each device under test in the wafer. The LED light sources provide light from a phosphor illuminated by the LED. A pinhole and lens arrangement is used to collimate the light provided to the devices under test. Uniformity of illumination can be provided by closed loop control of the LED light sources using internal optical signals as feedback signals, in combination with calibration data relating the optical signal values to emitted optical intensity. Uniformity of illumination can be further improved by providing a neutral density filter for each LED light source to improve uniformity from one source to another and/or to improve uniformity of the radiation pattern from each LED light source.
    Type: Application
    Filed: December 7, 2017
    Publication date: June 14, 2018
    Inventors: Nobuhiro Kawamata, Toshihiro Kasai, Hiromitsu Sasanami, Shigeki Mori
  • Patent number: 9902849
    Abstract: A polycarbonate resin composition and a molded article thereof are described, which have good flame retardance and high thermal stability when molded under high temperature. The resin composition contains a resin modifier (B) containing a tetrafluoroethylene-based polymer (p1) and a vinyl polymer (p2) other than the polymer (p1). The resin modifier (B) is obtained by using an alkaline (earth) metal salt other than a sulfate salt to coagulate a latex containing the polymer (p1) and the polymer (p2). The polymer (p2) is formed by performing polymerization on a vinyl monomer (X) containing at least 20 mass % of an aromatic vinyl monomer (x1) in the presence of at least one emulsifier selected from a phosphoric acid-based emulsifier, a carboxylic acid-based emulsifier, and a nonionic emulsifier.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: February 27, 2018
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Masahiro Ueda, Toshihiro Kasai
  • Patent number: 9862791
    Abstract: Disclosed is an impact strength modifier (?) for a chlorine-containing resin, comprising a powder of a graft copolymer (A) obtained by graft polymerizing one or more kinds of vinyl monomers (b1) onto a polyorganosiloxane rubber (A1) or a composite rubber (A2) containing a polyorganosiloxane rubber and a polyalkyl(meth)acrylate rubber, wherein the specific surface area of the powder of the graft copolymer (A) measured by a nitrogen gas adsorption method is from 0.6 to 30 m2/g, and the pH of water used for extraction under conditions, in which (1) in an oven at 180° C., 5.0 g of the powder of the graft copolymer (A) is left to stand still and heated for 15 minutes, and (2) after the heating, the powder is dispersed in 100 ml of heated pure water and extracted for 1 hour at 70° C. while stirring, is from 4 to 11.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 9, 2018
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yuichiro Fujikawa, Atsushi Kuwahara, Ayaka Wakita, Toshihiro Kasai
  • Publication number: 20170342186
    Abstract: Disclosed is an impact strength modifier (?) for a chlorine-containing resin, comprising a powder of a graft copolymer (A) obtained by graft polymerizing one or more kinds of vinyl monomers (b1) onto a polyorganosiloxane rubber (A1) or a composite rubber (A2) containing a polyorganosiloxane rubber and a polyalkyl (meth)acrylate rubber, wherein the specific surface area of the powder of the graft copolymer (A) measured by a nitrogen gas adsorption method is from 0.6 to 30 m2/g, and the pH of water used for extraction under conditions, in which (1) in an oven at 180° C., 5.0 g of the powder of the graft copolymer (A) is left to stand still and heated for 15 minutes, and (2) after the heating, the powder is dispersed in 100 ml of heated pure water and extracted for 1 hour at 70° C. while stirring, is from 4 to 11.
    Type: Application
    Filed: August 11, 2017
    Publication date: November 30, 2017
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Yuichiro Fujikawa, Atsushi Kuwahara, Ayaka Wakita, Toshihiro Kasai
  • Patent number: 9689915
    Abstract: A probe card apparatus can comprise a tester interface to a test controller, probes for contacting terminals of electronic devices to be tested, and electrical connections there between. The probe card apparatus can comprise a primary sub-assembly, which can include the tester interface. The probe card apparatus can also comprise an interchangeable probe head, which can include the probes. The interchangeable probe head can be attached to and detached from the primary sub-assembly while the primary sub-assembly is secured to or in a housing of a test system. Different probe heads each having probes disposed in different patterns to test different types of electronic devices can thus be interchanged while the primary sub-assembly is secured to or in a housing of the test system.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: June 27, 2017
    Assignee: FormFactor, Inc.
    Inventors: Toshihiro Kasai, Masanori Watanabe, Yoichi Urakawa
  • Patent number: 9688801
    Abstract: Disclosed is a vinyl polymer powder which is superior to dispersibility to curable resin compositions, which immediately gives a gel state for curable resin compositions by short-time heating with predetermined temperature, which is with high ion concentration, and which is useful as a pre-gel agent suitable for fields of electronic materials, to provide a curable resin composition comprising the vinyl polymer powder, and to provide a cured substance of the curable resin composition. The vinyl polymer powder of the present invention has an acetone-soluble component of 30% by mass or more, mass average molecular weight of the acetone-soluble component of 100,000 or more, a content of an alkali metal ion of 10 ppm or less, and a volume average primary particle size (Dv) of 200 nm or more.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: June 27, 2017
    Assignee: MITSUBISHI RAYON CO., LTD.
    Inventors: Kaori Fukutani, Toshihiro Kasai
  • Patent number: 9550896
    Abstract: A variety of molded bodies having high weatherability, impact resistance, designability, and the like, and a polyorganosiloxane latex and a graft copolymer used as the raw materials therefor are provided, where the polyorganosiloxane latex has a mass average particle diameter (Dw) of a polyorganosiloxane particle of 100 to 200 nm, and a ratio of the mass average particle diameter (Dw) to a number average particle diameter (Dn) (Dw/Dn) of 1.0 to 1.7. A polyorganosiloxane-containing vinyl-based copolymer (g) obtained by polymerizing one or more vinyl-based monomers in the presence of the latex. A graft copolymer (G) is obtained by graft polymerizing one or more vinyl-based monomers in the presence of the copolymer. A thermoplastic resin composition includes the graft copolymer (G) and a thermoplastic resin (Ha) except for the graft copolymer (G). A molded body is obtained by molding the resin composition.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: January 24, 2017
    Assignees: Mitsubishi Rayon Co., Ltd., UMG ABS, Ltd.
    Inventors: Ayaka Wakita, Toshihiro Kasai, Hidemichi Kouno, Shigenari Takeda
  • Patent number: 9522997
    Abstract: A polymer powder (P) selected from a group consisting of (i) a polymer powder (P1) and (ii) a polymer powder (P2) is provided. The (i) polymer powder (P1) includes a (meth)acrylate-based polymer (A1) having a glass transition temperature of 0° C. or less, and the polymer powder has an acetone-soluble component of 5 mass % or more. The acetone-soluble component has a mass average molecular weight of 100,000 or more. The (ii) polymer powder (P2) has an acetone-soluble component of 2 mass % to 35 mass %, the acetone-soluble component has a mass average molecular weight of 100,000 or more, and has a volume average primary particle size (Dv) of 200 nm or more.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: December 20, 2016
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Youko Hatae, Toshihiro Kasai
  • Patent number: 9517580
    Abstract: A nozzle touch mechanism (50) includes a base frame (6), a stationary platen (4) to which a mold (5) is to be attached, and an injection mechanism (1). The injection mechanism (1) is moved it toward the stationary platen (4) by means of a ball screw shaft (11). A motor portion (14) which applies a pressing force to the mold (5) from a nozzle (3) is connected to one end (11a) of the ball screw shaft (11). A connection mechanism (7) is provided which is connected to the other end (11b) of the ball screw shaft (11) and to the stationary platen (4) at a support located above the center of the nozzle (3). When no pressing force is applied to the mold (5) from the nozzle (3) by the motor portion (14), springs (18) can press the connection mechanism (7) in such a direction as to move it away from the stationary platen (4) with respect to the base frame (6).
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: December 13, 2016
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Hideaki Kitta, Toshihiro Kasai
  • Patent number: 9464218
    Abstract: Disclosed is a (meth)acrylate polymer having a volume average primary particle size of 0.520 to 3.00 ?m, a peak temperature of tan ? in the range of ?100 to 0° C., determined with dynamic viscoelasticity measurement, of ?40° C. or below, a peak height of tan ? in the range of ?100 to 0° C., determined with dynamic viscoelasticity measurement, of 0.300 or more, and an acetone-insoluble component of 99% by mass of more. This polymer has excellent dispersibility of primary particles in a resin, excellent storage stability of a resin composition obtained, and excellent insulating properties and reduction in elastic modulus of a molded article obtained.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: October 11, 2016
    Assignee: MITSUBISHI RAYON CO., LTD.
    Inventors: Tsuneki Wakita, Toshihiro Kasai
  • Publication number: 20160185965
    Abstract: A variety of molded bodies having high weatherability, impact resistance, designability, and the like, and a polyorganosiloxane latex and a graft copolymer used as the raw materials therefor are provided, where the polyorganosiloxane latex has a mass average particle diameter (Dw) of a polyorganosiloxane particle of 100 to 200 nm, and a ratio of the mass average particle diameter (Dw) to a number average particle diameter (Dn) (Dw/Dn) of 1.0 to 1.7. A polyorganosiloxane-containing vinyl-based copolymer (g) obtained by polymerizing one or more vinyl-based monomers in the presence of the latex. A graft copolymer (G) is obtained by graft polymerizing one or more vinyl-based monomers in the presence of the copolymer. A thermoplastic resin composition includes the graft copolymer (G) and a thermoplastic resin (Ha) except for the graft copolymer (G). A molded body is obtained by molding the resin composition.
    Type: Application
    Filed: January 29, 2016
    Publication date: June 30, 2016
    Applicants: Mitsubishi Rayon Co., Ltd., UMG ABS, Ltd.
    Inventors: Ayaka Wakita, Toshihiro Kasai, Hidemichi Kouno, Shigenari Takeda
  • Patent number: 9315634
    Abstract: Disclosed are a method of producing a graft copolymer, comprising polymerizing a vinyl monomer (B) containing a polyfunctional vinyl monomer (b1) in the presence of a polyorganosiloxane rubber (A) comprising more than 20% by mass of a toluene-insoluble matter, wherein a mass percentage of the polyfunctional vinyl monomer (b1) is 11 to 19% by mass based on 100% by mass of a total amount of the polyorganosiloxane rubber (A) and the vinyl monomer (B); a graft copolymer obtained by the method; a resin composition being prepared by blending the graft copolymer with a resin and having high impact resistance and heat resistance and sufficient flame retardancy; and a molded article obtained by molding the resin composition.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: April 19, 2016
    Assignee: MITSUBISHI RAYON CO., LTD.
    Inventors: Hiroaki Otonari, Takashi Miura, Toshihiro Kasai
  • Publication number: 20160096955
    Abstract: A polymer powder (P) selected from a group consisting of (i) a polymer powder (P1) and (ii) a polymer powder (P2) is provided. The (i) polymer powder (P1) includes a (meth)acrylate-based polymer (A1) having a glass transition temperature of 0° C. or less, and the polymer powder has an acetone-soluble component of 5 mass % or more. The acetone-soluble component has a mass average molecular weight of 100,000 or more. The (ii) polymer powder (P2) has an acetone-soluble component of 2 mass % to 35 mass %, the acetone-soluble component has a mass average molecular weight of 100,000 or more, and has a volume average primary particle size (Dv) of 200 nm or more.
    Type: Application
    Filed: November 3, 2015
    Publication date: April 7, 2016
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Youko Hatae, Toshihiro Kasai
  • Publication number: 20160039963
    Abstract: Disclosed is an impact strength modifier (?) for a chlorine-containing resin, comprising a powder of a graft copolymer (A) obtained by graft polymerizing one or more kinds of vinyl monomers (b1) onto a polyorganosiloxane rubber (A1) or a composite rubber (A2) containing a polyorganosiloxane rubber and a polyalkyl(meth)acrylate rubber, wherein the specific surface area of the powder of the graft copolymer (A) measured by a nitrogen gas adsorption method is from 0.6 to 30 m2/g, and the pH of water used for extraction under conditions, in which (1) in an oven at 180° C., 5.0 g of the powder of the graft copolymer (A) is left to stand still and heated for 15 minutes, and (2) after the heating, the powder is dispersed in 100 ml of heated pure water and extracted for 1 hour at 70° C. while stirring, is from 4 to 11.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 11, 2016
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Yuichiro FUJIKAWA, Atsushi KUWAHARA, Ayaka WAKITA, Toshihiro KASAI
  • Publication number: 20160024355
    Abstract: Disclosed is a (meth)acrylate polymer having a volume average primary particle size of 0.520 to 3.00 ?m, a peak temperature of tan ? in the range of ?100 to 0° C., determined with dynamic viscoelasticity measurement, of ?40° C. or below, a peak height of tan ? in the range of ?100 to 0° C., determined with dynamic viscoelasticity measurement, of 0.300 or more, and an acetone-insoluble component of 99% by mass of more. This polymer has excellent dispersibility of primary particles in a resin, excellent storage stability of a resin composition obtained, and excellent insulating properties and reduction in elastic modulus of a molded article obtained.
    Type: Application
    Filed: July 28, 2015
    Publication date: January 28, 2016
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Tsuneki WAKITA, Toshihiro Kasai
  • Patent number: 9193812
    Abstract: A polymer powder (P) selected from a group consisting of (i) a polymer powder (P1) and (ii) a polymer powder (P2) is provided. The (i) polymer powder (P1) includes a (meth)acrylate-based polymer (A1) having a glass transition temperature of 0° C. or less, and the polymer powder has an acetone-soluble component of 5 mass % or more. The acetone-soluble component has a mass average molecular weight of 100,000 or more. The (ii) polymer powder (P2) has an acetone-soluble component of 2 mass % to 35 mass %, the acetone-soluble component has a mass average molecular weight of 100,000 or more, and has a volume average primary particle size (Dv) of 200 nm or more.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: November 24, 2015
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Youko Hatae, Toshihiro Kasai
  • Patent number: 9110236
    Abstract: The present application relates to a pavement marker including a core from which extends protrusions and a cavity between adjacent protrusions. The microsphere lenses are fixed within the cavity by one of a softening material disposed in the core and an adhesive agent disposed in the cavity.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: August 18, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Junichi Saito, Toshihiro Kasai, Yuji Hiroshige, Mayumi Yoshikawa
  • Publication number: 20150158222
    Abstract: A nozzle touch mechanism (50) includes a base frame (6), a stationary platen (4) to which a mold (5) is to be attached, and an injection mechanism (1). The injection mechanism (1) is moved it toward the stationary platen (4) by means of a ball screw shaft (11). A motor portion (14) which applies a pressing force to the mold (5) from a nozzle (3) is connected to one end (11a) of the ball screw shaft (11). A connection mechanism (7) is provided which is connected to the other end (11b) of the ball screw shaft (11) and to the stationary platen (4) at a support located above the center of the nozzle (3). When no pressing force is applied to the mold (5) from the nozzle (3) by the motor portion (14), springs (18) can press the connection mechanism (7) in such a direction as to move it away from the stationary platen (4) with respect to the base frame (6).
    Type: Application
    Filed: July 3, 2013
    Publication date: June 11, 2015
    Inventors: Hideaki Kitta, Toshihiro Kasai