Inventor

Toshiharu Yamaguchi

Inventor

Zama, JP

Overview

18→

Patents

1987–2005

Patent span

Physics

Primary field (CPC G)

Patents· 18 as inventor

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

G02Fprimary

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein80%

A63FCard, board, or roulette games5%

G09GArrangements or circuits for control of indicating devices using static means to present variable information5%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation5%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

PatentTitleYear

6,853,431'Liquid crystal device and method for manufacturing same with spacers formed by photolithography'2005 6,493,057'Liquid crystal device and method for manufacturing same with spacers formed by photolithography'2002 5,963,288'Liquid crystal device having sealant and spacers made from the same material'1999 5,952,676'Liquid crystal device and method for manufacturing same with spacers formed by photolithography'1999 5,725,210'Game machine'1998 5,598,284'Electro-optical device defined by relationship of data voltage, residual voltage, spontaneous polarization, and liquid crystal time constant and capacitance'1997 5,379,139'Liquid crystal device and method for manufacturing same with spacers formed by photolithography'1995 5,353,140'Liquid crystal display'1994 5,196,954'Liquid crystal display'1993 5,109,292'Liquid crystal device having resin layer formed between adjacent active elements'1992 5,069,531'Liquid crystal device having asymmetrical opposed contiguous surfaces being driven by a unipolar driving source'1991 5,039,620'Method of making a photoelectric conversion device with a high response speed'1991 4,995,706'Liquid crystal device with a ferroelectric thin film'1991 4,978,203'Liquid crystal device with an apparent hysteresis'1990 4,874,461'Method for manufacturing liquid crystal device with spacers formed by photolithography'1989 4,861,143'Liquid crystal display capable of displaying grey tone'1989 4,799,776'Ferroelectric liquid crystal display device having a single polarizer'1989 4,691,995'Liquid crystal filling device'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2005Patents assigned to SEMICONDUCTOR ENERGY LAB (17)· patent assignee history

1987–2005Based in Zama, JP· patent location history

1989–1991Based in Kanagawa, JP· patent location history

1991Patents assigned to HAMATANI TOSHIJI (1)· patent assignee history

1991Patents assigned to INUJIMA TAKASHI (1)· patent assignee history

1991Patents assigned to KONUMA TOSHIMITSU (1)· patent assignee history

1991Patents assigned to MASE AKIRA (1)· patent assignee history

1997–1998Based in Gifu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SEMICONDUCTOR ENERGY LAB	17	1987–2005
HAMATANI TOSHIJI	1	1991
INUJIMA TAKASHI	1	1991
KONUMA TOSHIMITSU	1	1991
MASE AKIRA	1	1991

Locations

Location	Patents	Span
Zama, JP	14	1987–2005
Gifu, JP	2	1997–1998
Kanagawa, JP	2	1989–1991