Patents by Inventor Masahiro Imaizumi

Masahiro Imaizumi 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: 20030091842
    Abstract: A cover-lay film comprising a heat-resistant film and an adhesive layer, wherein the adhesive layer is formed of an epoxy resin composition containing (a) an epoxy resin, (b) a curing agent, (c) a phenolic hydroxyl-containing polyamide-poly(butadiene-acrylonitrile) copolymer, and (d) an ion capturing agent and having a glass transition temperature of 80° C. or higher after cure, and the heat-resistant film mainly comprises a polyimide containing a 3,3′,4,4′-biphenyltetracarboxylic acid component and a p-phenylenediamine component and has a specific coefficient of linear thermal expansion and a specific tensile modulus in both machine and transverse directions.
    Type: Application
    Filed: September 24, 2002
    Publication date: May 15, 2003
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Tooru Murakami, Toyofumi Asano, Masahiro Imaizumi
  • Publication number: 20030009001
    Abstract: An object of the present invention is to provide an epoxy resin composition which has high flexibility, can be molded to a thin membrane, and can become a noninflammable cured product.
    Type: Application
    Filed: May 31, 2002
    Publication date: January 9, 2003
    Inventors: Yasumasa Akatsuka, Toyofumi Asano, Masahiro Imaizumi, Katsuhiko Oshimi, Syouichi Tomida
  • Patent number: 5990118
    Abstract: Purine or triazolopurine compounds are disclosed represented by formula (I) or (II): ##STR1## wherein R.sup.1 and R.sup.4 represent each hydrogen, halogeno, hydroxy, mercapto, or amino; R.sup.2 represents alkyl or aryl; and R.sup.3 and R.sup.5 represent each hydrogen, alkyl, or aryl; and pharmaceutical compositions comprising these compounds as xanthine oxidase inhibitors, remedies for hyperuricemia, or remedies or preventive agents for gout.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: November 23, 1999
    Assignee: Yamasa Corporation
    Inventors: Tomohisa Nagamatsu, Yoko Watanabe, Kazuki Endo, Masahiro Imaizumi
  • Patent number: 5334593
    Abstract: The present invention relates to an anxiolytic drug comprising as an active ingredient a 1-amino-5-halogenouracil represented by formula [I]: ##STR1## wherein X represents a halogen atom, or pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: August 2, 1994
    Assignee: Yamasa Shoyu Kabushiki Kaisha
    Inventors: Masahiro Imaizumi, Shinji Sakata
  • Patent number: 5252576
    Abstract: Disclosed are a central nervous system depressant which comprises a 1-amino-5-halogenouracil represented by the formula ##STR1## wherein X represents a halogen atom, or a pharmaceutically acceptable salt thereof as an active ingredient;a 1-amino-5-halogenouracil represented by the formula ##STR2## wherein X' represents chlorine, bromine or iodine, or a salt thereof; and a process for preparing a 1-amino-5-halogenouracil represented by the above shown formula [I] from a pyrimidine derivative represented by the formula ##STR3## wherein X represents a halogen atom and R represents a protective group.
    Type: Grant
    Filed: January 17, 1991
    Date of Patent: October 12, 1993
    Assignee: Yamasa Shoyu Kabushiki Kaisha
    Inventors: Shinji Sakata, Masahiro Imaizumi
  • Patent number: 4655309
    Abstract: A transmission system for a motorcycle or motorized tricycle, comprising a main gearbox 3 having multiple gear steps, a sub gearbox 4 coupled to the main gearbox having two widely spaced forward gears GL, GH an one reverse gear GR; and one shift lever 14 controlling the selection of the gears in the sub gearbox. The reverse gear may be interlocked with the neutral and lowest speed gear of the main gearbox.
    Type: Grant
    Filed: December 31, 1985
    Date of Patent: April 7, 1987
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masahiro Imaizumi, Masanori Masumura, Takeshi Ishikawa, Eiji Hosoya
  • Patent number: 4646865
    Abstract: A three- or four-wheeled motor vehicle such as a buggy includes a rear fork composed of first and second rear fork members having front ends pivotally mounted on a frame and rear ends supporting rear wheels, respectively, an axle housing having first and second axial ends, the first axial end being joined to the rear end of the first rear fork member, a rear axle rotatably supported in the axle housing, a gear case coupled between the rear end of the second rear fork member and the second axial end of the axle housing and accommodating a gear mechanism for driving the rear axle, and at least one cross member extending between and joined to the first and second rear fork members. The rear end of the first rear fork member has a first joining surface having at least one attachment hole defined therein and directed transversely of the frame. The first end of the axle housing has a second joining surface having at least one attachment hole defined therein and facing the first joining surface.
    Type: Grant
    Filed: July 16, 1985
    Date of Patent: March 3, 1987
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masahiro Imaizumi, Hiroshi Akai, Takafumi Irie, Takashi Inagaki
  • Patent number: 4635506
    Abstract: A transmission system for a motorcycle or motorized tricycle, comprising a main gearbox 3 having multiple gear steps, a sub gearbox 4 coupled to the main gearbox having two widely spaced forward gears GL, GH and one reverse gear GR; and one shift lever 14 controlling the selection of the gears in the sub gearbox. The reverse gear may be interlocked with the neutral and lowest speed gear of the main gearbox.
    Type: Grant
    Filed: October 14, 1983
    Date of Patent: January 13, 1987
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masahiro Imaizumi, Masanori Masumura, Takeshi Ishikawa, Eiji Hosoya
  • Patent number: 4593782
    Abstract: A shaft drive apparatus for transmitting power from an engine through a drive shaft to driving wheels. The shaft drive apparatus has a final output mechanism and a brake mechanism disposed adjacent to each other substantially axially centrally of an axle of the driving wheels, the drive shaft being disposed substantially on a longitudinal central axis of a vehicle body and between the final output mechanism and the brake mechanism.
    Type: Grant
    Filed: August 8, 1984
    Date of Patent: June 10, 1986
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Nobusawa, Eiji Hosoya, Masahiro Imaizumi, Hitoyuki Takasu
  • Patent number: 4574652
    Abstract: An improved transmission in a motor vehicle including a body, an engine located in the vicinity of the center of the body, a pair of footrests attached to the body near the engine, and front and rear wheels. The transmission is integral with the engine and has a casing, a shift spindle having one end projecting from the casing and rotatable for shifting the transmission, and a control lever coupled to the shift spindle. According to the improvement, a cam means is interposed between the control lever and the casing for limiting shifting operation of the control lever. The cam means comprises a cam member having a cam surface and fixed to the casing, a shaft member axially slidably fitted in the control lever and having a control knob on a first end thereof, and a spring disposed between the shaft member and the control lever for urging the shaft member to cause a second end of the shaft member to abut against the cam surface of the cam member.
    Type: Grant
    Filed: August 9, 1984
    Date of Patent: March 11, 1986
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takashi Shichinohe, Masahiro Imaizumi, Ryoichi Ikejima, Yoshio Oka