Hidefumi Ohtsuka

Person

Chiyoda-machi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image recording apparatus
- Patent number 6,285,854
- Issue date Sep 4, 2001
- Hitachi, Ltd.
- Shigeru Obata
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Recording apparatus with conveyed recording sheet heated by movable...
- Patent number 6,130,408
- Issue date Oct 10, 2000
- Hitachi, Ltd.
- Hiromitsu Fukuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image recording apparatus which prevents variation in speed of a re...
- Patent number 6,104,907
- Issue date Aug 15, 2000
- Hitachi, Ltd.
- Shigeru Obata
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Toner image heating device
- Patent number 5,961,864
- Issue date Oct 5, 1999
- Hitachi Koki Co., Ltd.
- Isao Nakajima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Three-dimensional input device with displayed legend and shape-chan...
- Patent number 5,801,704
- Issue date Sep 1, 1998
- Hitachi, Ltd.
- Shunichi Oohara
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Continuous recording medium friction-conveying mechanism in image f...
- Patent number 5,774,777
- Issue date Jun 30, 1998
- Hitachi, Ltd.
- Hidefumi Ohtsuka
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Electrostatic recording head, image recording apparatus, developing...
- Patent number 4,977,415
- Issue date Dec 11, 1990
- Hitachi, Ltd.
- Sayoko Oba
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and apparatus for image recording
- Patent number 4,777,499
- Issue date Oct 11, 1988
- Hitachi, Ltd.
- Kenji Okuna
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electrographic recording apparatus
- Patent number 4,763,143
- Issue date Aug 9, 1988
- Hitachi, Ltd.
- Sayoko Ohba
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Hidefumi Ohtsuka

Person

Patents Grantslast 30 patents

Image recording apparatus

Recording apparatus with conveyed recording sheet heated by movable...

Image recording apparatus which prevents variation in speed of a re...

Toner image heating device

Three-dimensional input device with displayed legend and shape-chan...

Continuous recording medium friction-conveying mechanism in image f...

Electrostatic recording head, image recording apparatus, developing...

Method and apparatus for image recording

Electrographic recording apparatus