Patents by Inventor Yoji Nakayama

Yoji Nakayama 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).

  • Rear projection display apparatus and translucent screen for use therein
    Patent number: 6502942
    Abstract: For providing a rear-projection type display apparatus, and a translucent type sheet for use therein, in particular, using an image modulation element, such as, a liquid crystal or a DMD (Digital Micro-mirror Device), etc.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: January 7, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Shigeru Mori, Yoji Nakayama, Shigeru Inaoka, Kazunari Nakagawa
  • Rear projection display apparatus and translucent screen for use therein
    Publication number: 20020109915
    Abstract: For providing a rear-projection type display apparatus, and a translucent type sheet for use therein, in particular, using an image modulation element, such as, a liquid crystal or a DMD (Digital Micro-mirror Device), etc.
    Type: Application
    Filed: September 28, 2001
    Publication date: August 15, 2002
    Applicant: Hitachi, Ltd.
    Inventors: Shigeru Mori, Yoji Nakayama, Shigeru Inaoka, Kazunari Nakagawa
  • Vinyl chloride polymer composition
    Patent number: 5248723
    Abstract: A vinyl chloride polymer composition comprising from 50 to 90 parts by weight of a vinyl chloride polymer having an average particle size of from 5 to 80 .mu.m and an average degree of polymerization of at least 2500 and from 50 to 10 parts by weight of a vinyl chloride polymer capable of forming a plastisol.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: September 28, 1993
    Assignee: Mitsubishi Kasei Vinyl Company
    Inventors: Yoji Nakayama, Yasuo Murase
  • Fishing rod and method of manufacturing same
    Patent number: 4821447
    Abstract: A fishing rod having a portion on which a leg portion of a fishing reel is mounted is composed of three layered structure integrally formed by a thermosetting manner and comprising a prepreg sheet or woven fabric layer prepared by impregnating thermosetting resin into high tension or strength fibers, a glass fiber reinforced sheet layer prepared by impregnating thermosetting resin into glass fibers, and a carbon fiber reinforced sheet layer whose fibers extend in a single orientation prepared by impregnating thermosetting resin into carbon fibers. The three layers constitute a thickened portion on which the reel is mounted. Screw threads are formed throughout the entire axial length of the thickened portion and two nut members are screw-engaged with the screw threads in an axially opposing manner to be axially movable.
    Type: Grant
    Filed: May 10, 1988
    Date of Patent: April 18, 1989
    Assignee: Ryobi Ltd.
    Inventors: Yoji Nakayama, Akira Yasui