Patents by Inventor Koji Nakajima

Koji Nakajima 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: 20030236373
    Abstract: The present invention is a method of preparing an acrylic copolymer using as a raw material a monomer mixture comprising 50 mole % or more of a monomer having a polymerizable double bond formed by a carbon atom to which no hydrogen atom is bonded and a carbon atom to which a hydrogen atom is bonded, wherein after the polymerization is carried out at a polymerization temperature of 150° C. or higher, further heating at 80-130° C. is done.
    Type: Application
    Filed: June 17, 2003
    Publication date: December 25, 2003
    Applicant: Nippon Paint Company, Ltd.
    Inventors: Tomohito Asai, Masatoshi Oohata, Koji Nakajima
  • Publication number: 20030204010
    Abstract: An adhesive, comprising (A) a polymeric MDI, (B) modified polyvinyl acetate emulsion, (C) aqueous polyvinyl alcohol solution, and (D) a filler.
    Type: Application
    Filed: May 15, 2003
    Publication date: October 30, 2003
    Inventors: Ritsuo Iwata, Hironao Nagashima, Tomohide Ogata, Kazunari Suzuki, Koji Nakajima
  • Publication number: 20020060534
    Abstract: In an inline self-convergence type deflection yoke for use in a three-gun color Braun tubes a pair of main vertical deflection windings and a pair of auxiliary vertical deflection windings are connected in series between a vertical deflection current input terminal and a vertical current output terminal. A differential resistor is connected in parallel with the pair of the auxiliary vertical deflection windings and has a movable end. An inductor is connected between the movable end and a connection point of the auxiliary vertical deflection windings.
    Type: Application
    Filed: November 21, 2001
    Publication date: May 23, 2002
    Applicant: NEC CORPORATION
    Inventor: Koji Nakajima
  • Publication number: 20020057047
    Abstract: A deflection yoke for an in-line self convergence type color cathode-ray tube. The deflection yoke includes an auxiliary coil assembly having auxiliary coils which are electrically coupled with vertical deflection coils and which produce electric field for compensating for misconvergence caused by comatic aberration. The auxiliary coil assembly also comprises a pair of U-shaped cores which are opposed to each other via a neck portion of the color cathode-ray tube and on which the auxiliary coils are wound. The deflection yoke comprises one or more magnetic material pieces, for example, a pair of magnetic material pieces which are disposed on respective one of said U-shaped cores. The one or more magnetic material pieces are preferably made of high permeability metal.
    Type: Application
    Filed: November 13, 2001
    Publication date: May 16, 2002
    Applicant: NEC Corporation
    Inventor: Koji Nakajima
  • Patent number: 6384546
    Abstract: An inline type color cathode-ray tube deflection yoke applies a deflecting magnetic field to electron beams from a neck portion of a valve accommodating three electron guns toward the funnel portion of the valve. The deflection yoke is provided with a vertical deflection coil, auxiliary coils serially connected to the vertical deflection coil, and a U-shaped magnetic member around each of both leg portions of which the auxiliary coils are wound. The U-shaped magnetic member is arranged so that the leg portions face the neck portion.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: May 7, 2002
    Assignee: NEC Corporation
    Inventor: Koji Nakajima
  • Patent number: 6320409
    Abstract: A majority circuit comprises CMOS circuits is adapted to prevent operation errors due to disagreement of conductance among the transistors of the circuits. Such a majority circuit can realize a large fan in.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: November 20, 2001
    Assignee: President of Tohoku University
    Inventors: Koji Nakajima, Shigeo Sato
  • Publication number: 20010031819
    Abstract: An adhesive, comprising (A) a polymeric MDI, (B) modified polyvinyl acetate emulsion, (C) aqueous polyvinyl alcohol solution, and (D) a filler. Preferably, amass ratio of A:B:C:D is 30:(60-160):(50-160):(10-140) provided that the aqueous polyvinyl alcohol solution (C) is in a concentration of 10% by mass.
    Type: Application
    Filed: March 16, 2001
    Publication date: October 18, 2001
    Inventors: Ritsuo Iwata, Hironao Nagashima, Tomohide Ogata, Kazunari Suzuki, Koji Nakajima
  • Publication number: 20010008368
    Abstract: An inline type color cathode-ray tube deflection yoke applies a deflecting magnetic field to electron beams from a neck portion of a valve accommodating three electron guns toward the funnel portion of the valve. The deflection yoke is provided with a vertical deflection coil, auxiliary coils serially connected to the vertical deflection coil, and a U-shaped magnetic member around each of both leg portions of which the auxiliary coils are wound. The U-shaped magnetic member is arranged so that the leg portions face the neck portion.
    Type: Application
    Filed: January 11, 2001
    Publication date: July 19, 2001
    Inventor: Koji Nakajima
  • Patent number: 5461446
    Abstract: A photosensitive material processing apparatus which performs, with high accuracy, the positioning of a negative table, an optical system supporting member, a guide member for photographic paper, a conveying member, a development portion, a drying portion and a cutting portion relative to each other on a base member by means of positioning members. As a result, a high quality image can be reliably obtained and the photographic paper can be accurately conveyed.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: October 24, 1995
    Assignees: Fuji Photo Film Co., Ltd., Fuji Photo Optical Co., Ltd.
    Inventors: Yasunobu Sakaguchi, Mamoru Ogasawara, Koji Nakajima
  • Patent number: 4963214
    Abstract: In production of a planar wooden decorative article used for surface covering of furnitures and home interior decorations, a resin prepregnated sheet is prepared by impregnating a material sheet with hardenable resin solution and plurality of resin prepregnated sheets are combined with small wooden pieces to form a laminated composite which is then hardened by heating under pressure. The product has a rich woody impression due to inclusion of the small wooden pieces predominant in the surface region and high toughness coming from the laminated construction.
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: October 16, 1990
    Assignee: Yamaha Corporation
    Inventors: Ritsuo Iwata, Tomohide Ogata, Kaneo Omoto, Hironao Nagashima, Koji Nakajima, Yutaka Miyamoto
  • Patent number: 4955353
    Abstract: A piston head for an internal combustion engine is provided containing a polished nickel plated layer formed in the piston top and an anodized layer formed on at least the lower part of the uppermost piston ring groove in order to reduce the adverse affects of excessive thermal conditions on the member.
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: September 11, 1990
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Atsushi Amataka, Kazumitsu Kushida, Koji Nakajima, Hitoshi Yamamoto
  • Patent number: 4548173
    Abstract: A four cycle internal combustion engine including a secondary intake system. The secondary intake system includes a pumping diaphragm actuated by pressure variation within the engine crankcase. The pumping diaphragm is in turn connected to the intake passage through a secondary intake passage to receive and expel air/fuel mixture toward the intake valving at appropriate intervals. A control valve control communication between the crankcase and the pumping diaphragm to restrict or allow actuation of the pumping diaphragm. An outlet also extends from the system to vent the crankcase at appropriate intervals.
    Type: Grant
    Filed: January 11, 1984
    Date of Patent: October 22, 1985
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Toshio Yabumoto, Hiromu Sakaoka, Koji Nakajima