Kenichi Takanashi

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Light source system, optical scanner, image forming apparatus, and...
- Patent number 8,085,457
- Issue date Dec 27, 2011
- Ricoh Company, Ltd.
- Daisuke Ichii
- G02 - OPTICS
Information Patent Grant
Optical scanning lens, optical scanning device and image forming ap...
- Patent number 7,072,127
- Issue date Jul 4, 2006
- Ricoh Company, Ltd.
- Hiroyuki Suhara
- G02 - OPTICS
Information Patent Grant
Optical scanning device, image forming apparatus, and optical scann...
- Patent number 7,006,270
- Issue date Feb 28, 2006
- Ricoh Company, Ltd.
- Seizo Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical scanning lens, optical scanning device and image forming ap...
- Patent number 6,870,652
- Issue date Mar 22, 2005
- Ricoh Company, Ltd.
- Hiroyuki Suhara
- G02 - OPTICS
Information Patent Grant
Optical scanning device, image forming apparatus, and optical scann...
- Patent number 6,862,123
- Issue date Mar 1, 2005
- Ricoh Company, Ltd.
- Seizo Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical scanning lens and apparatus capable of effectively generati...
- Patent number 6,856,438
- Issue date Feb 15, 2005
- Ricoh Company Ltd.
- Kenichi Takanashi
- G02 - OPTICS
Information Patent Grant
Method and apparatus for multi-beam optical scanning capable of eff...
- Patent number 6,839,157
- Issue date Jan 4, 2005
- Ricoh Company, Ltd.
- Nobuaki Ono
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for optical scanning capable of performing a h...
- Patent number 6,833,940
- Issue date Dec 21, 2004
- Ricoh Company, Ltd.
- Seizo Suzuki
- G02 - OPTICS
Information Patent Grant
Optical scanning lens, optical scanning device and image forming ap...
- Patent number 6,744,545
- Issue date Jun 1, 2004
- Ricoh Company, Ltd.
- Hiroyuki Suhara
- G02 - OPTICS
Information Patent Grant
Optical scanning device, image forming apparatus, and optical scann...
- Patent number 6,657,761
- Issue date Dec 2, 2003
- Ricoh Company, Ltd.
- Seizo Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical scanning lens, optical scanning device and image forming ap...
- Patent number 6,400,391
- Issue date Jun 4, 2002
- Ricoh Company, Ltd.
- Hiroyuki Suhara
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Multi-beam scanning apparatus
- Patent number 6,317,246
- Issue date Nov 13, 2001
- Ricoh Company, Ltd.
- Yoshinori Hayashi
- G02 - OPTICS
Information Patent Grant
Optical scanning device, image forming apparatus and optical scanni...
- Patent number 6,233,081
- Issue date May 15, 2001
- Ricoh Company Ltd.
- Seizo Suzuki
- G02 - OPTICS
Information Patent Grant
Multi-beam scanning apparatus
- Patent number 6,185,026
- Issue date Feb 6, 2001
- Ricoh Company, Ltd.
- Yoshinori Hayashi
- G02 - OPTICS
Information Patent Grant
Optical scanner
- Patent number 5,771,115
- Issue date Jun 23, 1998
- Ricoh Company, Ltd.
- Kenichi Takanashi
- G02 - OPTICS
Information Patent Grant
Optical scanner
- Patent number 5,757,532
- Issue date May 26, 1998
- Ricoh Company, Ltd.
- Kenichi Takanashi
- G02 - OPTICS
Information Patent Grant
Optical scanner for reducing shading
- Patent number 5,459,601
- Issue date Oct 17, 1995
- Ricoh Company, Ltd.
- Seizoh Suzuki
- G02 - OPTICS
Information Patent Grant
Optical scanner for reducing shading
- Patent number 5,355,244
- Issue date Oct 11, 1994
- Ricoh Company Ltd.
- Seizoh Suzuki
- G02 - OPTICS
Information Patent Grant
F.theta. lens and lens for forming linear image
- Patent number 5,247,385
- Issue date Sep 21, 1993
- Ricoh Company, Ltd.
- Kenichi Takanashi
- G02 - OPTICS
Information Patent Grant
Optical scanner for image recording apparatus
- Patent number 5,161,047
- Issue date Nov 3, 1992
- Ricoh Company, Ltd.
- Kan Tomita
- G02 - OPTICS
Information Patent Grant
Light scanning device
- Patent number 5,087,983
- Issue date Feb 11, 1992
- Ricoh Company, Ltd.
- Yasushi Takahashi
- G02 - OPTICS
Information Patent Grant
Optical scanner
- Patent number 5,029,956
- Issue date Jul 9, 1991
- Ricoh Company, Ltd.
- Kenichi Takanashi
- G02 - OPTICS
Information Patent Grant
Optical scanning system
- Patent number 4,971,411
- Issue date Nov 20, 1990
- Ricoh Company, Ltd.
- Kenichi Takanashi
- G02 - OPTICS
Information Patent Grant
Light beam scanning device and light beam scanning lens
- Patent number 4,962,982
- Issue date Oct 16, 1990
- Ricoh Company, Ltd.
- Kenichi Takanashi
- G02 - OPTICS
Information Patent Grant
Optical scanning system using a laser diode array
- Patent number 4,932,734
- Issue date Jun 12, 1990
- Ricoh Company, Ltd.
- Nobuo Sakuma
- G02 - OPTICS
Information Patent Grant
Light scanning device
- Patent number 4,863,227
- Issue date Sep 5, 1989
- Ricoh Company, Ltd.
- Kenichi Takanashi
- G02 - OPTICS
Information Patent Grant
Light scanning device
- Patent number 4,859,011
- Issue date Aug 22, 1989
- Ricoh Company, Ltd.
- Kenichi Takanashi
- G02 - OPTICS
Information Patent Grant
F.theta. lens system for use in light scanning device
- Patent number 4,846,539
- Issue date Jul 11, 1989
- Ricoh Company, Ltd.
- Yasushi Takahashi
- G02 - OPTICS
Information Patent Grant
Optical scanning system having a surface inclination correction fun...
- Patent number 4,836,630
- Issue date Jun 6, 1989
- Ricoh Company, Ltd.
- Kenichi Takanashi
- G02 - OPTICS
Information Patent Grant
Zoom lens with a mechanism for moving a first lens so as to be comp...
- Patent number 4,779,964
- Issue date Oct 25, 1988
- Ricoh Company, Ltd.
- Toshiro Ozawa
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL SHAPING APPARATUS
- Publication number 20210339460
- Publication date Nov 4, 2021
- Kantatsu Co., Ltd.
- Eiji OSHIMA
- B33 - ADDITIVE MANUFACTURING TECHNOLOGY
Information Patent Application
OPTICAL SHAPING APPARATUS
- Publication number 20180222108
- Publication date Aug 9, 2018
- KANTATSU CO., LTD.
- Eiji OSHIMA
- B33 - ADDITIVE MANUFACTURING TECHNOLOGY
Information Patent Application
ELIGIBLE OPERATOR DETERMINATION DEVICE AND ELIGIBLE OPERATOR DETERM...
- Publication number 20150092994
- Publication date Apr 2, 2015
- RICOH COMPANY, LTD.
- Koji MASUDA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
LIGHT SOURCE SYSTEM, OPTICAL SCANNER, IMAGE FORMING APPARATUS, AND...
- Publication number 20070253047
- Publication date Nov 1, 2007
- Daisuke ICHII
- G02 - OPTICS
Information Patent Application
Optical scanning lens, optical scanning device and image forming ap...
- Publication number 20050128615
- Publication date Jun 16, 2005
- Hiroyuki Suhara
- G02 - OPTICS
Information Patent Application
Optical scanning device, image forming apparatus, and optical scann...
- Publication number 20050122557
- Publication date Jun 9, 2005
- Seizo Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for multi-beam optical scanning capable of eff...
- Publication number 20050105156
- Publication date May 19, 2005
- Nobuaki Ono
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical scanning lens, optical scanning device and image forming ap...
- Publication number 20040196520
- Publication date Oct 7, 2004
- Hiroyuki Suhara
- G02 - OPTICS
Information Patent Application
Optical scanning device, image forming apparatus, and optical scann...
- Publication number 20040001136
- Publication date Jan 1, 2004
- Seizo Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical scanning lens and apparatus capable of effectively generati...
- Publication number 20030179429
- Publication date Sep 25, 2003
- Kenichi Takanashi
- G02 - OPTICS
Information Patent Application
Method and apparatus for multi-beam optical scanning capable of eff...
- Publication number 20030146375
- Publication date Aug 7, 2003
- Nobuaki Ono
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for optical scanning capable of performing a h...
- Publication number 20030133175
- Publication date Jul 17, 2003
- Seizo Suzuki
- G02 - OPTICS
Information Patent Application
Optical scanning lens, optical scanning device and image forming ap...
- Publication number 20020163571
- Publication date Nov 7, 2002
- Hiroyuki Suhara
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Optical scanning device, image forming apparatus, and optical scann...
- Publication number 20010026393
- Publication date Oct 4, 2001
- Ricoh Company, Ltd.
- Seizo Suzuki
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Kenichi Takanashi

Person

Patents Grantslast 30 patents

Light source system, optical scanner, image forming apparatus, and...

Optical scanning lens, optical scanning device and image forming ap...

Optical scanning device, image forming apparatus, and optical scann...

Optical scanning lens, optical scanning device and image forming ap...

Optical scanning device, image forming apparatus, and optical scann...

Optical scanning lens and apparatus capable of effectively generati...

Method and apparatus for multi-beam optical scanning capable of eff...

Method and apparatus for optical scanning capable of performing a h...

Optical scanning lens, optical scanning device and image forming ap...

Optical scanning device, image forming apparatus, and optical scann...

Optical scanning lens, optical scanning device and image forming ap...

Multi-beam scanning apparatus

Optical scanning device, image forming apparatus and optical scanni...

Multi-beam scanning apparatus

Optical scanner

Optical scanner

Optical scanner for reducing shading

Optical scanner for reducing shading

F.theta. lens and lens for forming linear image

Optical scanner for image recording apparatus

Light scanning device

Optical scanner

Optical scanning system

Light beam scanning device and light beam scanning lens

Optical scanning system using a laser diode array

Light scanning device

Light scanning device

F.theta. lens system for use in light scanning device

Optical scanning system having a surface inclination correction fun...

Zoom lens with a mechanism for moving a first lens so as to be comp...

Patents Applicationslast 30 patents

OPTICAL SHAPING APPARATUS

OPTICAL SHAPING APPARATUS

ELIGIBLE OPERATOR DETERMINATION DEVICE AND ELIGIBLE OPERATOR DETERM...

LIGHT SOURCE SYSTEM, OPTICAL SCANNER, IMAGE FORMING APPARATUS, AND...

Optical scanning lens, optical scanning device and image forming ap...

Optical scanning device, image forming apparatus, and optical scann...

Method and apparatus for multi-beam optical scanning capable of eff...

Optical scanning lens, optical scanning device and image forming ap...

Optical scanning device, image forming apparatus, and optical scann...

Optical scanning lens and apparatus capable of effectively generati...

Method and apparatus for multi-beam optical scanning capable of eff...

Method and apparatus for optical scanning capable of performing a h...

Optical scanning lens, optical scanning device and image forming ap...

Optical scanning device, image forming apparatus, and optical scann...