Inventor

Hiroshi Oikawa

Inventor

Tokyo, JP

Overview

21→

Patents

1978–2013

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 21 as inventor

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

F02Bprimary

F02BInternal-combustion piston engines8%

Y02TClimate change mitigation technologies related to transportation8%

B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for5%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%

E05FDevices for moving wings into open or closed position5%

E05YIndexing scheme associated with subclasses e05d and e05f, relating to construction elements, electric control, power supply, power signal or transmission, user interfaces, mounting or coupling, details, accessories, auxiliary operations not otherwise provided for, application thereof5%

F02DControlling combustion engines5%

F02FCylinders, pistons or casings, for combustion engines5%

F02MSupplying combustion engines in general with combustible mixtures or constituents thereof5%

G02BOptical elements, systems or apparatus5%

PatentTitleYear

8,374,536'Cylindrical heating rotator for heating a developer, fixing device using said heating rotator and image forming device using said heating rotator'2013 7,757,115'Feedback control device'2010 7,308,200'Pre-emphasis control method in consideration of nonlinear deterioration'2007 7,216,634'Diesel engine DME fuel supply device'2007 7,136,584'Optical output power automatic attenuation circuit for optical communication apparatus'2006 7,065,270'Optical transmission device'2006 6,966,577'Occupant detecting apparatus capable of improving detection accuracy'2005 6,950,572'Optical coupler'2005 6,684,973'Occupant detecting apparatus capable of improving detection accuracy'2004 6,097,105'Motor controlling equipment for power window'2000 6,060,670'Slide switch'2000 5,839,089'Thunder cloud observation system'1998 5,771,637'Plastic lower sash for vehicle window glass'1998 5,638,411'Stuff bit synchronization system'1997 5,343,702'Zeolite converter for diesel engine'1994 5,097,807'Combustion chamber for diesel engines'1992 4,953,528'Direct injection-type diesel engines'1990 4,754,737'Fuel injection pump device and method for settling the same'1988 4,271,079'5-(2,5-Dioxotetrahydrofuryl)-3-methyl-3-cyclohexene-1,2-dicarboxylic anhydride'1981 4,259,321'Compositions and methods for controlling coccidiosis'1981 4,085,018'Photocurable resin compositions'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1981Patents assigned to DAINIPPON INK & CHEMICALS (2)· patent assignee history

1978–1981Based in Chiba, JP· patent location history

1988–1992Patents assigned to MITSUBISHI MOTORS CORP (3)· patent assignee history

1988–2005Based in Tokyo, JP· patent location history

1998–2010Based in Kawasaki, JP· patent location history

2000Based in Saitama, JP· patent location history

2004–2005Patents assigned to HONDA ELESYS CO LTD (2)· patent assignee history

2005–2013Patents assigned to FUJI XEROX CO LTD (3)· patent assignee history

2005–2013Based in Ebina, JP· patent location history

2006–2010Patents assigned to FUJITSU LTD (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FUJI XEROX CO LTD	3	2005–2013
FUJITSU LTD	3	2006–2010
MITSUBISHI MOTORS CORP	3	1988–1992
DAINIPPON INK & CHEMICALS	2	1978–1981
HONDA ELESYS CO LTD	2	2004–2005

Locations

Location	Patents	Span
Tokyo, JP	6	1988–2005
Ebina, JP	3	2005–2013
Kawasaki, JP	3	1998–2010
Saitama, JP	2	2000
Chiba, JP	2	1978–1981