Inventor

Kenichi Takanashi

Inventor

Chiba, JP

Overview

1987–2011

Patent span

Physics

Primary field (CPC G)

Patents· 32 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G02Bprimary

G02BOptical elements, systems or apparatus62%

B41JTypewriters15%

H04NPictorial communication, e.g. television10%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h106%

PatentTitleYear

8,085,457'Light source system, optical scanner, image forming apparatus, and light-amount control method'2011 7,072,127'Optical scanning lens, optical scanning device and image forming apparatus'2006 7,006,270'Optical scanning device, image forming apparatus, and optical scanning method'2006 6,870,652'Optical scanning lens, optical scanning device and image forming apparatus'2005 6,862,123'Optical scanning device, image forming apparatus, and optical scanning method'2005 6,856,438'Optical scanning lens and apparatus capable of effectively generating accurately-pitched light spots, and image forming apparatus using the same'2005 6,839,157'Method and apparatus for multi-beam optical scanning capable of effectively adjusting a scanning line pitch'2005 6,833,940'Method and apparatus for optical scanning capable of performing a high speed and high pixel density scanning'2004 6,744,545'Optical scanning lens, optical scanning device and image forming apparatus'2004 6,657,761'Optical scanning device, image forming apparatus, and optical scanning method'2003 6,400,391'Optical scanning lens, optical scanning device and image forming apparatus'2002 6,317,246'Multi-beam scanning apparatus'2001 6,233,081'Optical scanning device, image forming apparatus and optical scanning method'2001 6,185,026'Multi-beam scanning apparatus'2001 5,771,115'Optical scanner'1998 5,757,532'Optical scanner'1998 5,459,601'Optical scanner for reducing shading'1995 5,355,244'Optical scanner for reducing shading'1994 5,247,385'F.theta. lens and lens for forming linear image'1993 5,161,047'Optical scanner for image recording apparatus'1992 5,087,983'Light scanning device'1992 5,029,956'Optical scanner'1991 4,971,411'Optical scanning system'1990 4,962,982'Light beam scanning device and light beam scanning lens'1990 4,932,734'Optical scanning system using a laser diode array'1990 4,863,227'Light scanning device'1989 4,859,011'Light scanning device'1989 4,846,539'F.theta. lens system for use in light scanning device'1989 4,836,630'Optical scanning system having a surface inclination correction function'1989 4,779,964'Zoom lens with a mechanism for moving a first lens so as to be compactly housed'1988 4,756,584'Scanning optical system with irregular deflecting surface correction'1988 4,707,085'F.theta. lens for use in light beam scanner'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2006Patents assigned to RICOH KK (31)· patent assignee history

1987–2011Based in Kanagawa, JP· patent location history

1988–1992Based in Yokohama, JP· patent location history

1992–2003Based in Inzai, JP· patent location history

1993–2006Based in Chiba, JP· patent location history

1998Based in Inba-gun, JP· patent location history

2011Patents assigned to ICHII DAISUKE (1)· patent assignee history

2011Patents assigned to RICOH CO LTD (1)· patent assignee history

2011Patents assigned to TAKANASHI KENICHI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RICOH KK	31	1987–2006
ICHII DAISUKE	1	2011
RICOH CO LTD	1	2011
TAKANASHI KENICHIself	1	2011

Locations

Location	Patents	Span
Chiba, JP	16	1993–2006
Yokohama, JP	11	1988–1992
Kanagawa, JP	2	1987–2011
Inzai, JP	2	1992–2003
Inba-gun, JP	1	1998