Inventor

Takao Fujiwara

Inventor

Sakai, JP

Overview

33→

Patents

1976–2021

Patent span

Physics

Primary field (CPC G)

Patents· 33 as inventor

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

G03Gprimary

G03GElectrography29%

G01NInvestigating or analysing materials by determining their chemical or physical properties6%

B01LChemical or physical laboratory apparatus for general use5%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them5%

H04NPictorial communication, e.g. television5%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h105%

B62KCycles3%

C23CCoating metallic material3%

G02BOptical elements, systems or apparatus3%

H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light3%

PatentTitleYear

11,115,031Phase-locked loop2021 10,697,989Liquid-sealed cartridge, specimen analyzer, and specimen analysis method2020 10,473,652Method of detecting test substance, sample analysis cartridge, and sample analyzer2019 10,393,765Measurement apparatus and measurement method2019 9,823,178'Flow cytometer, particle analyzer, and flow cytometric method'2017 9,776,636'Guidance control system for vehicle driving operation'2017 7,990,253'Vehicular theft preventing device'2011 6,249,353'Image editing apparatus'2001 5,103,764'Developing device drive mechanism for selecting and powering developing units'1992 5,073,793'Multi-color image forming method and an apparatus therefor'1991 5,038,171'Multicolored image forming method and apparatus therefor'1991 4,935,781'Image forming apparatus having color editing function'1990 4,827,314'Optical illumination device for use in a copying apparatus'1989 4,483,606'Toner scattering prevention device'1984 4,435,443'Method for forming a protecting film on side walls of a semiconductor device'1984 4,360,919'Semiconductor light emitting device'1982 4,356,210'Method for forming a protecting film on side walls of a semiconductor device'1982 4,306,351'Method for producing a semiconductor laser element'1981 4,277,165'Photocopying machine equipped with variable magnification arrangement'1981 4,264,186'Electrophotographic copying apparatus'1981 4,244,647'Erasing device for image transfer type copying apparatus'1981 4,174,904'Electrophotographic copying apparatus for copying thick and thin originals'1979 4,116,556'Electrophotographic copying apparatus'1978 4,038,026'Electrophotographic fusing apparatus'1977 4,009,958'Belt support structure in copying machine'1977 4,008,954'Device for extinguishing unnecessary electrostatic charge in electrophotographic copier'1977 4,003,335'Developing material applicator'1977 4,001,545'Devices for controlling the heating of fuser roll apparatus'1977 3,998,584'Electrophotographic fusing apparatus'1976 3,985,436'Electrophotographic copying apparatus'1976 3,981,575'Photocopier illumination device'1976 3,965,524'Residual toner removing apparatus'1976 3,942,889'Residual toner removing apparatus'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1992Patents assigned to MINOLTA CAMERA KK (21)· patent assignee history

1976–1979Based in Sakai, JP· patent location history

1981–1984Patents assigned to FUJITSU LTD (4)· patent assignee history

1981–1990Based in Toyokawa, JP· patent location history

1989–1992Based in Osaka, JP· patent location history

2011–2017Patents assigned to HONDA MOTOR CO LTD (2)· patent assignee history

2011–2017Based in Wako, JP· patent location history

2017–2020Patents assigned to SYSMEX CORP (4)· patent assignee history

2017–2020Based in Kobe, JP· patent location history

2020Patents assigned to ASTI CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MINOLTA CAMERA KK	21	1976–1992
FUJITSU LTD	4	1981–1984
SYSMEX CORP	4	2017–2020
HONDA MOTOR CO LTD	2	2011–2017
ASTI CORP	1	2020

Locations

Location	Patents	Span
Sakai, JP	12	1976–1979
Kobe, JP	4	2017–2020
Osaka, JP	4	1989–1992
Toyokawa, JP	4	1981–1990
Wako, JP	2	2011–2017