Susumu Imakawa

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Half tone recording method and light source device for writing
- Patent number 5,325,160
- Issue date Jun 28, 1994
- Ricoh Company, Ltd.
- Susumu Imakawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color image forming apparatus having means for properly superimposi...
- Patent number 5,294,944
- Issue date Mar 15, 1994
- Ricoh Company, Ltd.
- Yoshinobu Takeyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Beam recorder forming low density dots
- Patent number 5,258,780
- Issue date Nov 2, 1993
- Ricoh Company, Ltd.
- Hidetoshi Ema
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Focusing error detection apparatus using a first and second knife e...
- Patent number 5,231,280
- Issue date Jul 27, 1993
- Ricoh Company, Ltd.
- Susumu Imakawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Synchronizing signal generating system
- Patent number 5,059,987
- Issue date Oct 22, 1991
- Ricoh Company, Ltd.
- Yoshinobu Takeyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Synchronizing signal generating system for laser scanner
- Patent number 4,962,431
- Issue date Oct 9, 1990
- Ricoh Company, Ltd.
- Susumu Imakawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Synchronizing signal generating system for laser scanner
- Patent number 4,837,588
- Issue date Jun 6, 1989
- Ricoh Company, Ltd.
- Susumu Imakawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of controlling the temperature of semiconductor laser in an...
- Patent number 4,834,477
- Issue date May 30, 1989
- Ricoh Company, Ltd.
- Satoru Tomita
- G02 - OPTICS
Information Patent Grant
Optical scanning apparatus wherein image scanning clock signal freq...
- Patent number 4,760,251
- Issue date Jul 26, 1988
- Ricoh Company, Ltd.
- Kazuyuki Shimada
- G02 - OPTICS
Information Patent Grant
Uniform intensity per pixel when the linear speed of a laser beam v...
- Patent number 4,757,191
- Issue date Jul 12, 1988
- Ricoh Company, Ltd.
- Kazuyuki Shimada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Scanning clock generating device for optical scanner
- Patent number 4,729,617
- Issue date Mar 8, 1988
- Ricoh Company, Ltd.
- Kazuyuki Shimada
- G02 - OPTICS

Susumu Imakawa

Person

Patents Grantslast 30 patents

Half tone recording method and light source device for writing

Color image forming apparatus having means for properly superimposi...

Beam recorder forming low density dots

Focusing error detection apparatus using a first and second knife e...

Synchronizing signal generating system

Synchronizing signal generating system for laser scanner

Synchronizing signal generating system for laser scanner

Method of controlling the temperature of semiconductor laser in an...

Optical scanning apparatus wherein image scanning clock signal freq...

Uniform intensity per pixel when the linear speed of a laser beam v...

Scanning clock generating device for optical scanner