Hiroyasu Sumida

Person

Ichikawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Original-discrimination system for discriminating special document,...
- Patent number 6,272,248
- Issue date Aug 7, 2001
- Ricoh Company, Ltd.
- Takashi Saitoh
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Image forming apparatus which forms an image based on stored image...
- Patent number 6,226,102
- Issue date May 1, 2001
- Ricoh Company, Ltd.
- Moriyuki Koike
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image forming apparatus and method for detecting and eliminating av...
- Patent number 5,987,227
- Issue date Nov 16, 1999
- Ricoh Company, Ltd.
- Tsuyoshi Endo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image forming apparatus which determines if memory will overflow be...
- Patent number 5,877,864
- Issue date Mar 2, 1999
- Ricoh Company, Ltd.
- Hiroyasu Sumida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Original-discrimination system for discriminating special document,...
- Patent number 5,751,854
- Issue date May 12, 1998
- Ricoh Company, Ltd.
- Takashi Saitoh
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital copying machine having selective paper feed based on copy p...
- Patent number 5,550,623
- Issue date Aug 27, 1996
- Ricoh Company, Ltd.
- Kan Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having an image orientation identifying dev...
- Patent number 5,383,754
- Issue date Jan 24, 1995
- Ricoh Company, Ltd.
- Hiroyasu Sumida
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Copier having an editing function
- Patent number 5,049,932
- Issue date Sep 17, 1991
- Ricoh Company, Ltd.
- Hiroyasu Sumida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Background accenuating image forming apparatus
- Patent number 4,980,725
- Issue date Dec 25, 1990
- Ricoh Company, Ltd.
- Hiroyasu Sumida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Device for setting operation modes of office equipment
- Patent number 4,881,101
- Issue date Nov 14, 1989
- Ricoh Company, Ltd.
- Hiroyasu Sumida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Copy information output device for a copier
- Patent number 4,851,878
- Issue date Jul 25, 1989
- Ricoh Company, Ltd.
- Hiroyasu Sumida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Hiroyasu Sumida

Person

Patents Grantslast 30 patents

Original-discrimination system for discriminating special document,...

Image forming apparatus which forms an image based on stored image...

Image forming apparatus and method for detecting and eliminating av...

Image forming apparatus which determines if memory will overflow be...

Original-discrimination system for discriminating special document,...

Digital copying machine having selective paper feed based on copy p...

Image forming apparatus having an image orientation identifying dev...

Copier having an editing function

Background accenuating image forming apparatus

Device for setting operation modes of office equipment

Copy information output device for a copier