Patents by Inventor Hiroshi Takayama

Hiroshi Takayama 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: 20240026573
    Abstract: An object of the present invention is to provide a polyurethane urea elastic fiber with high elasticity and excellent textile property stability over time by modifying the ends of the polyurethane urea polymer molecular chain, and to provide a method for producing such a polyurethane urea elastic fiber. Another object of the present invention is to provide a polyurethane urea elastic fiber that allows for easier inventory control and processing condition management of fibers when it is used, and that can be used to obtain fabrics with stable fabric characteristics and fabric quality, and to provide a method for producing such a polyurethane urea elastic fiber.
    Type: Application
    Filed: October 22, 2021
    Publication date: January 25, 2024
    Inventors: Hiroshi TAKAYAMA, Masashi HARA
  • Publication number: 20230392295
    Abstract: [Problem] An object of the present invention is to provide a polyurethane elastic fiber with excellent textile properties and textile property stability over time by including in the polyurethane elastic fiber a specific polyurethane having in the molecular structure a salt structure in which specific functional groups are ionically bonded to each other, and to provide a method for producing such a polyurethane elastic fiber. Another object of the present invention is to provide a polyurethane elastic fiber that allows for easier inventory control and processing condition management of fibers when used, and that can be used to obtain fabrics with stable fabric properties and fabric quality, and to provide a method for producing such a polyurethane elastic fiber. [Solution] A polyurethane elastic fiber comprising polyurethane A and additive B below. Polyurethane A: A polyurethane using as starting materials a polymer diol, a diisocyanate, and a chain extender, and not having a tertiary amine in the skeleton.
    Type: Application
    Filed: October 22, 2021
    Publication date: December 7, 2023
    Inventors: Hiroshi TAKAYAMA, Masashi HARA
  • Patent number: 11303762
    Abstract: An image inspecting apparatus includes circuitry. The circuitry is configured to determine, based on a result of comparison of scanned image data and sample image data, whether an image indicated by the scanned image data has a printing error, the scanned image data being generated from a document image formed and output according to document image data on a recording medium and read, the sample image data corresponding to the document image data. The circuitry is configured to generate display image data representing a pseudo defect image having the printing error added to a position different from a position of the printing error in the image indicated by the scanned image data, in response to determination that the image indicated by the scanned image data has the printing error.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: April 12, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventor: Hiroshi Takayama
  • Publication number: 20210385337
    Abstract: An image inspecting apparatus includes circuitry. The circuitry is configured to determine, based on a result of comparison of scanned image data and sample image data, whether an image indicated by the scanned image data has a printing error, the scanned image data being generated from a document image formed and output according to document image data on a recording medium and read, the sample image data corresponding to the document image data. The circuitry is configured to generate display image data representing a pseudo defect image having the printing error added to a position different from a position of the printing error in the image indicated by the scanned image data, in response to determination that the image indicated by the scanned image data has the printing error.
    Type: Application
    Filed: May 18, 2021
    Publication date: December 9, 2021
    Applicant: Ricoh Company, Ltd.
    Inventor: Hiroshi TAKAYAMA
  • Patent number: 10040892
    Abstract: [Problem] To provide a polyurethane elastic yarn which has the high strength and ductility sought in polyurethane elastic yarn, and also has excellent durability and heat resistance, as well as little fatigue at low temperature; and a production method thereof. [Means of Resolution] A polyurethane elastic yarn made from polyurethane which has polymer diol and diisocyanate as starting substances, wherein said polyurethane comprises a polyurethane A containing a polybutadiene structure in which the proportion of 1,2-bonded butadiene structure to 1,4-bonded butadiene structure in the molecule is in the range from 91:9 to 20:80.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: August 7, 2018
    Assignee: INVISTA North America S.a r.l.
    Inventors: Hiroshi Takayama, Toshihiro Tanaka, Masashi Hara, Hong Liu
  • Patent number: 9890479
    Abstract: The present invention relates to a polyurethane resin including, as constituent units, a diol (a1) having a number average molecular weight of 500 to 10,000, an organic diisocyanate (b), and a chain extender (a2). The total concentration of urethane groups and urea groups in the polyurethane resin is 1.25 to 2.50 mmol/g based on the weight of the polyurethane resin. Hard segment domains of the polyurethane resin have an average domain size of 20 to 30 nm as measured with an atomic force microscope.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: February 13, 2018
    Assignees: SANYO CHEMICAL INDUSTRIES, LTD., TORAY OPELONTEX CO., LTD.
    Inventors: Yusuke Koike, Shinpei Funaoka, Kenzo Hori, Toshihiro Tanaka, Shingo Ito, Hiroshi Takayama
  • Publication number: 20160265142
    Abstract: The present invention relates to polyurethane elastic fibers obtained by spinning a polyurethane resin. The polyurethane resin includes, as constituent units, a diol (a1) having a number average molecular weight of 500 to 10,000, an organic diisocyanate (b), and a chain extender (a2). The total concentration of urethane groups and urea groups in the polyurethane resin is 1.25 to 2.50 mmol/g based on the weight of the polyurethane resin. Hard segment domains of the polyurethane resin have an average domain size of 20 to 30 nm as measured with an atomic force microscope.
    Type: Application
    Filed: October 16, 2014
    Publication date: September 15, 2016
    Applicant: TORAY OPELONTEX CO., LTD.
    Inventors: Toshihiro TANAKA, Shingo ITO, Hiroshi TAKAYAMA, Yusuke KOIKE, Shinpei FUNAOKA, Kenzo HORI
  • Publication number: 20160257775
    Abstract: The present invention relates to a polyurethane resin including, as constituent units, a diol (a1) having a number average molecular weight of 500 to 10,000, an organic diisocyanate (b), and a chain extender (a2). The total concentration of urethane groups and urea groups in the polyurethane resin is 1.25 to 2.50 mmol/g based on the weight of the polyurethane resin. Hard segment domains of the polyurethane resin have an average domain size of 20 to 30 nm as measured with an atomic force microscope.
    Type: Application
    Filed: October 16, 2014
    Publication date: September 8, 2016
    Applicants: SANYO CHEMICAL INDUSTRIES, LTD., TORAY OPELONTEX CO., LTD.
    Inventors: Yusuke KOIKE, Shinpei FUNAOKA, Kenzo HORI, Toshihiro TANAKA, Shingo ITO, Hiroshi TAKAYAMA
  • Publication number: 20140044723
    Abstract: The present invention provides an antibody which has the following features, its active fragment, or a derivative thereof: a) It specifically binds to human platelet membrane glycoprotein VI (GPVI); b) The function to activate a platelet and/or the function to induce a thrombocytopenia in vivo are low; and c) It at least partially depletes GPVI on the platelet membrane by contacting with a platelet.
    Type: Application
    Filed: July 24, 2013
    Publication date: February 13, 2014
    Inventors: Hiroshi Takayama, Kamon Shirakawa, Shoji Furusako, Yoshitaka Hosaka, Tomokazu Matsusue, Katsuki Naitoh, Yumi Hotta, Tetsushi Kawahara, Motoyasu Honda
  • Patent number: 8524870
    Abstract: The present invention provides an antibody which has the following features, its active fragment, or a derivative thereof: a) It specifically binds to human platelet membrane glycoprotein VI (GPVI); b) The function to activate a platelet and/or the function to induce a thrombocytopenia in vivo are low; and c) It at least partially depletes GPVI on the platelet membrane by contacting with a platelet.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: September 3, 2013
    Assignee: Mochida Pharmaceutical Co., Ltd.
    Inventors: Hiroshi Takayama, Kamon Shirakawa, Shoji Furusako, Yoshitaka Hosaka, Tomokazu Matsusue, Katsuki Naitoh, Yumi Hotta, Tetsushi Kawahara, Motoyasu Honda
  • Patent number: 8389692
    Abstract: The present invention provides an antibody which has the following features, its active fragment, or a derivative thereof: a) It specifically binds to human platelet membrane glycoprotein VI (GPVI); b) The function to activate a platelet and/or the function to induce a thrombocytopenia in vivo are low; and c) It at least partially depletes GPVI on the platelet membrane by contacting with a platelet.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: March 5, 2013
    Assignee: Mochida Pharmaceutical Co., Ltd.
    Inventors: Hiroshi Takayama, Kamon Shirakawa, Shoji Furusako, Yoshitaka Hosaka, Tomokazu Matsusue, Katsuki Naitoh, Yumi Hotta, Tetsushi Kawahara, Motoyasu Honda
  • Publication number: 20120259074
    Abstract: [Problem] To provide a polyurethane elastic yarn which has the high strength and ductility sought in polyurethane elastic yarn, and also has excellent durability and heat resistance, as well as little fatigue at low temperature; and a production method thereof. [Means of Resolution] A polyurethane elastic yarn made from polyurethane which has polymer diol and diisocyanate as starting substances, wherein said polyurethane comprises a polyurethane A containing a polybutadiene structure in which the proportion of 1,2-bonded butadiene structure to 1,4-bonded butadiene structure in the molecule is in the range from 91:9 to 20:80.
    Type: Application
    Filed: October 26, 2010
    Publication date: October 11, 2012
    Applicant: INVISTA North America S.a r.l.
    Inventors: Hiroshi Takayama, Toshihiro Tanaka, Masashi Hara, Hong Liu
  • Publication number: 20110217318
    Abstract: The present invention provides an antibody which has the following features, its active fragment, or a derivative thereof: a) It specifically binds to human platelet membrane glycoprotein VI (GPVI); b) The function to activate a platelet and/or the function to induce a thrombocytopenia in vivo are low; and c) It at least partially depletes GPVI on the platelet membrane by contacting with a platelet.
    Type: Application
    Filed: April 27, 2011
    Publication date: September 8, 2011
    Inventors: HIROSHI TAKAYAMA, KAMON SHIRAKAWA, SHOJI FURUSAKO, YOSHITAKA HOSAKA, TOMOKAZU MATSUSUE, KATSUKI NAITOH, YUMI HOTTA, TETSUSHI KAWAHARA, MOTOYASU HONDA
  • Patent number: 7977461
    Abstract: The present invention provides an antibody which has the following features, its active fragment, or a derivative thereof: a) It specifically binds to human platelet membrane glycoprotein VI (GPVI); b) The function to activate a platelet and/or the function to induce a thrombocytopenia in vivo are low; and c) It at least partially depletes GPVI on the platelet membrane by contacting with a platelet.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: July 12, 2011
    Assignee: Mochida Pharmaceutical Co., Ltd.
    Inventors: Hiroshi Takayama, Kamon Shirakawa, Shoji Furusako, Yoshitaka Hosaka, Tomokazu Matsusue, Katsuki Naitoh, Yumi Hotta, Tetsushi Kawahara, Motoyasu Honda
  • Publication number: 20090092612
    Abstract: The present invention provides an antibody which has the following features, its active fragment, or a derivative thereof: a) It specifically binds to human platelet membrane glycoprotein VI (GPVI); b) The function to activate a platelet and/or the function to induce a thrombocytopenia in vivo are low; and c) It at least partially depletes GPVI on the platelet membrane by contacting with a platelet.
    Type: Application
    Filed: April 28, 2006
    Publication date: April 9, 2009
    Inventors: Hiroshi Takayama, Kamon Shirakawa, Shoji Furusako, Yoshitaka Hosaka, Tomokazu Matsusue, Katsuki Naitoh, Yumi Hotta, Tetsushi Kawahara, Motoyasu Honda
  • Publication number: 20090041783
    Abstract: The present invention provides an antibody which has the following features, its active fragment, or a derivative thereof: a) It specifically binds to human platelet membrane glycoprotein VI (GPVI); b) The function to activate a platelet and/or the function to induce a thrombocytopenia in vivo are low; and c) It at least partially depletes GPVI on the platelet membrane by contacting with a platelet.
    Type: Application
    Filed: January 27, 2006
    Publication date: February 12, 2009
    Inventors: Hiroshi Takayama, Kamon Shirakawa, Shoji Furusako, Yoshitaka Hosaka, Tomokazu Matsusue, Katsuki Naitoh, Yumi Hotta, Tetsushi Kawahara
  • Publication number: 20070025992
    Abstract: The present invention provides a human antibody or an active-fragment thereof that specifically binds to human platelet membrane glycoprotein VI and does not induce a human platelet aggregation independently; a cell that produces the antibody or its active-fragment; a pharmaceutical composition that comprises the antibody or its active-fragment as an active ingredient, and so on. The above-mentioned cell can be obtained for example, as follows: a peripheral-blood-lymphocyte of the human that produces an autologous antibody to GPVI is activated by in vitro immunization under specific conditions; a hybridoma with mouse myeloma cell is prepared; and then the hybridoma that produces a monoclonal antibody, which has a binding capacity to GPVI and has an activity that suppresses collagen-mediated agglutinability of the human platelet is selected.
    Type: Application
    Filed: July 20, 2004
    Publication date: February 1, 2007
    Applicant: MOCHIDA PHARMACEUTICAL CO., LTD
    Inventors: Hiroshi Takayama, Kamon Shirakawa, Toru Yamakawa, Tetsushi Kawahara
  • Patent number: 7072604
    Abstract: An electro-conductive roll is provided that makes contact with a body to be charged in a state in which a voltage is applied thereto, and charges the body to be charged, a surface of the electro-conductive roll satisfying the following conditions (a) and (b): (a) the surface of the electro-conductive roll has a 10-point average roughness of 5 ?m or less; and (b) the surface of the electro-conductive roll has a dynamic ultra-microhardness in the range of 0.04 to 0.5.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: July 4, 2006
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hiroyuki Miura, Hiroshi Takayama, Minoru Rokutan, Ryusei Kouda, Takahiko Hattori, Ryuji Watanabe
  • Publication number: 20040247340
    Abstract: An electro-conductive roll is provided that makes contact with a body to be charged in a state in which a voltage is applied thereto, and charges the body to be charged, a surface of the electro-conductive roll satisfying the following conditions (a) and (b):
    Type: Application
    Filed: March 19, 2004
    Publication date: December 9, 2004
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hiroyuki Miura, Hiroshi Takayama, Minoru Rokutan, Ryusei Kouda, Takahiko Hattori, Ryuji Watanabe
  • Publication number: 20030159558
    Abstract: According to the present invention, through holes (30) are formed in a web (3) in cooperation between an anvil roll (1) and a loop-shaped blade (20) of a cutter roll (2). A die-cut portion (31) is adsorbed to an inner-loop region (21) of the cutter roll (2), and then discharged by being sucked into a duct (80) while air is jet out from air vents (22) in the inner-loop region (21).
    Type: Application
    Filed: February 10, 2003
    Publication date: August 28, 2003
    Inventor: Hiroshi Takayama