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Inventor

Hidefumi Yamaguchi

Inventor
Fujisawa, JP

Overview

8→
Patents
1985–1998
Patent span
Physics
Primary field (CPC G)

Patents· 8 as inventor

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

G09Gprimary
G09GArrangements or circuits for control of indicating devices using static means to present variable information27%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein18%
H04NPictorial communication, e.g. television18%
LOC2018%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry9%
C10GCracking hydrocarbon oils9%
PatentTitleYear
D0395453'Display device'1998D0394089'Display device'19985,438,342'Liquid crystal display apparatus and method and apparatus for driving same'19955,253,091'Liquid crystal display having reduced flicker'19935,235,448'Liquid crystal display having proportional TFT channel width'19935,110,783'Hydrotreating catalyst and method for preparation thereof'19924,986,637'Arrangement of picture elements for color display'19914,501,996'Deflection distortion correcting circuit'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–1995Patents assigned to IBM (5)· patent assignee history
1985–1995Based in Fujisawa, JP· patent location history
1992Patents assigned to CATALYSTS & CHEM IND CO (1)· patent assignee history
1992Based in Kitakyushu, JP· patent location history
1998Patents assigned to FUJITSU GENERAL LTD (2)· patent assignee history
1998Patents assigned to FUJITSU LTD (2)· patent assignee history
1998Based in Kawasaki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
IBM51985–1995
FUJITSU GENERAL LTD21998
FUJITSU LTD21998
CATALYSTS & CHEM IND CO11992
Locations
LocationPatentsSpan
Fujisawa, JP51985–1995
Kawasaki, JP21998
Kitakyushu, JP11992