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Inventor

Osamu Fujiwara

Inventor
Nagaokakyo, JP

Overview

9→
Patents
1980–1992
Patent span
Physics
Primary field (CPC G)

Patents· 9 as inventor

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

H01Mprimary
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy25%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution25%
G11BInformation storage based on relative movement between record carrier and transducer19%
B23KSoldering or unsoldering13%
G05BControl or regulating systems in general13%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling6%
PatentTitleYear
5,103,356'Magnetic tape recording and playback device interconnected by conductor patterns formed on a circuit board'19924,730,292'Device for sequentially feeding a plurality of disk-shaped recording media'19884,719,157'Fuel cell stack assembly'19884,670,361'Manifold device for fuel cell system'19874,670,866'Recording medium disk continuous-driving apparatus'19874,642,274'Fuel cell system'19874,621,033'Fuel cell system and its vibration-proof device'19864,613,943'Operation teaching method and apparatus for industrial robot'19864,242,620'Automatic welding line tracing method and apparatus'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1986Patents assigned to HITACHI LTD (2)· patent assignee history
1980Patents assigned to HITACHI SEIKO KK (1)· patent assignee history
1980–1986Based in Funabashi, JP· patent location history
1986–1988Patents assigned to SANYO ELECTRIC CO (4)· patent assignee history
1986–1987Based in Takasago, JP· patent location history
1987–1988Patents assigned to MITSUBISHI ELECTRIC CORP (2)· patent assignee history
1987–1992Based in Nagaokakyo, JP· patent location history
1987–1988Based in Kobe, JP· patent location history
1988Based in Kyoto, JP· patent location history
1992Patents assigned to MITSUBISHI DANKI KABUHIKI KAIS (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SANYO ELECTRIC CO41986–1988
HITACHI LTD21980–1986
MITSUBISHI ELECTRIC CORP21987–1988
HITACHI SEIKO KK11980
MITSUBISHI DANKI KABUHIKI KAIS11992
Locations
LocationPatentsSpan
Nagaokakyo, JP21987–1992
Kobe, JP21987–1988
Takasago, JP21986–1987
Funabashi, JP21980–1986
Kyoto, JP11988