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Inventor

Yoji Hasegawa

Inventor
Yokohama, JP

Overview

13→
Patents
1983–2011
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 13 as inventor

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

F01Nprimary
F01NGas-flow silencers or exhaust apparatus for machines or engines in general30%
Y02TClimate change mitigation technologies related to transportation22%
H01JElectric discharge tubes or discharge lamps17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%
B22FWorking metallic powder4%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof4%
H04NPictorial communication, e.g. television4%
PatentTitleYear
8,018,155'Short arc type high voltage electrical discharge electrode, short arc type high voltage electrical discharge tube, short arc type high voltage electrical discharge light source apparatus, and their manufacturing methods'20117,796,310'Image reading apparatus and control method therefor, as well as storage medium'20107,126,276'Non-evaporation type getter, display unit and production method for them'20066,425,793'Impregnated cathode and method of manufacturing same, electron gun and electron tube'20026,252,341'Impregnated cathode having varying surface porosity'20014,608,640'Trap regenerative device control apparatus'19864,574,589'Exhaust particle removing system for an internal combustion engine'19864,567,725'Trap regenerative device control apparatus'19864,541,239'Exhaust purification apparatus'19854,538,413'Particle removing system for an internal combustion engine'19854,522,027'Exhaust particle removal system for an internal combustion engine'19854,522,028'Regenerative burner control apparatus'19854,422,431'Exhaust gas recirculation system for internal combustion engine'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1986Patents assigned to NISSAN MOTOR (8)· patent assignee history
1983–1986Based in Yokohama, JP· patent location history
2001–2011Patents assigned to SONY CORP (4)· patent assignee history
2001–2002Patents assigned to CIMEO PREC CO LTD (2)· patent assignee history
2001–2002Patents assigned to CITIZEN WATCH CO LTD (2)· patent assignee history
2001–2006Based in Kanagawa, JP· patent location history
2010Patents assigned to CANON DENSHI KK (1)· patent assignee history
2010Based in Chichibu, JP· patent location history
2011Based in Shizuoka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NISSAN MOTOR81983–1986
SONY CORP42001–2011
CIMEO PREC CO LTD22001–2002
CITIZEN WATCH CO LTD22001–2002
CANON DENSHI KK12010
Locations
LocationPatentsSpan
Yokohama, JP81983–1986
Kanagawa, JP32001–2006
Shizuoka, JP12011
Chichibu, JP12010