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Inventor

Yoshio Tsutsumi

Inventor
Hirakata, JP

Overview

11→
Patents
1982–2003
Patent span
Performing operations
Primary field (CPC B)

Patents· 11 as inventor

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

B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry14%
B01DSeparation7%
H03DDemodulation or transference of modulation from one carrier to another7%
H03GControl of amplification7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
Y10TTechnical subjects covered by former us classification7%
A24DCigars4%
A61LMethods or apparatus for sterilising materials or objects in general4%
B62DMotor vehicles4%
C01BNon-metallic elements4%
PatentTitleYear
6,514,907'Bromine-impregnated activated carbon and process for preparing the same'20035,670,124'Nitrogen-containing molecular sieving carbon, a process for preparing the same and use thereof'19975,206,204'Absorbent for lower aldehydes'19934,918,552'Cassette tape recorder having means for preventing cassette vibration during playback/recording'19904,644,334'Monitoring apparatus for a construction machine'19874,563,651'FM Demodulator with variable bandpass filter'19864,531,148'High sensitivity FM signal demodulation system'19854,516,469'Electric hydraulic controll device for a construction vehicle'19854,427,630'Gas deodorization method'19844,355,542'Scavenging pump'19824,336,869'Steering clutch and brake control for track-type vehicles'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1987Patents assigned to KOMATSU MFG CO LTD (4)· patent assignee history
1982–1987Based in Hirakata, JP· patent location history
1984–2003Patents assigned to TAKEDA CHEMICAL INDUSTRIES LTD (4)· patent assignee history
1984–2003Based in Takatsuki, JP· patent location history
1985–1986Patents assigned to OKI ELECTRIC IND CO LTD (2)· patent assignee history
1985–1986Based in Tokyo, JP· patent location history
1990Patents assigned to PIONEER ELECTRONIC CORP (1)· patent assignee history
1990Based in Saitama, JP· patent location history
1997Based in Osaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KOMATSU MFG CO LTD41982–1987
TAKEDA CHEMICAL INDUSTRIES LTD41984–2003
OKI ELECTRIC IND CO LTD21985–1986
PIONEER ELECTRONIC CORP11990
Locations
LocationPatentsSpan
Hirakata, JP41982–1987
Takatsuki, JP31984–2003
Tokyo, JP21985–1986
Osaka, JP11997
Saitama, JP11990