Yoshihisa Koyama

Person

Yokosuka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for recording and reproducing main and sub inf...
- Patent number 5,430,705
- Issue date Jul 4, 1995
- Victor Company of Japan, Ltd.
- Itsuo Takanashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Image formation and erasure on and from scattering-mode light-modul...
- Patent number 5,422,663
- Issue date Jun 6, 1995
- Victor Company of Japan, Ltd.
- Itsuo Takanashi
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Method and apparatus for recording optical information in a photoel...
- Patent number 5,408,341
- Issue date Apr 18, 1995
- Victor Company of Japan, Ltd.
- Itsuo Takanashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Light emitting diode array and production method of the light emitt...
- Patent number 5,406,095
- Issue date Apr 11, 1995
- Victor Company of Japan, Ltd.
- Yoshihisa Koyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Plate-making method and plate-making apparatus for printing
- Patent number 5,367,359
- Issue date Nov 22, 1994
- Victor Company of Japan, Ltd.
- Itsuo Takanashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Apparatus and method for recording information carried by electro-m...
- Patent number 5,337,078
- Issue date Aug 9, 1994
- Victor Company of Japan, Ltd.
- Itsuo Takanashi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Recording medium and recording apparatus wherein voltage is applied...
- Patent number 5,319,461
- Issue date Jun 7, 1994
- Victor Company of Japan, Ltd.
- Itsuo Takanashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Image formation and erasure on and from scattering-mode light-modul...
- Patent number 5,315,318
- Issue date May 24, 1994
- Victor Company of Japan, Ltd.
- Itsuo Takanashi
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Method and apparatus for recording optical information by using a p...
- Patent number 5,315,410
- Issue date May 24, 1994
- Victor Company of Japan, Ltd.
- Itsuo Takanshi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Recording medium and recording/reproduction apparatus thereof
- Patent number 5,313,288
- Issue date May 17, 1994
- Victor Company of Japan, Ltd.
- Itsuo Takanashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cinematographic system
- Patent number 5,241,376
- Issue date Aug 31, 1993
- Victor Company of Japan, Ltd.
- Itsuo Takanashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Reflective overhead projector with light-to-light converter
- Patent number 5,214,457
- Issue date May 25, 1993
- Victor Company of Japan, Ltd.
- Itsuo Takanashi
- G02 - OPTICS
Information Patent Grant
Color imaging system with selectively openable optical shutter
- Patent number 5,191,408
- Issue date Mar 2, 1993
- Victor Company of Japan, Ltd.
- Itsuo Takanashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Recording head with carrier generation and transport layers adjacen...
- Patent number 5,161,007
- Issue date Nov 3, 1992
- Victor Company of Japan, Ltd.
- Itsuo Takanashi
- G02 - OPTICS
Information Patent Grant
Method of recording color image information
- Patent number 5,151,781
- Issue date Sep 29, 1992
- Victor Company of Japan, Ltd.
- Itsuo Takanashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Yoshihisa Koyama

Person

Patents Grantslast 30 patents

Method and apparatus for recording and reproducing main and sub inf...

Image formation and erasure on and from scattering-mode light-modul...

Method and apparatus for recording optical information in a photoel...

Light emitting diode array and production method of the light emitt...

Plate-making method and plate-making apparatus for printing

Apparatus and method for recording information carried by electro-m...

Recording medium and recording apparatus wherein voltage is applied...

Image formation and erasure on and from scattering-mode light-modul...

Method and apparatus for recording optical information by using a p...

Recording medium and recording/reproduction apparatus thereof

Cinematographic system

Reflective overhead projector with light-to-light converter

Color imaging system with selectively openable optical shutter

Recording head with carrier generation and transport layers adjacen...

Method of recording color image information