Inventor

Keitaro Fukui

Inventor

Ohi, JP

Overview

3→

Patents

1988–1993

Patent span

Electricity

Primary field (CPC H)

Patents· 3 as inventor

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

B05Bprimary

B05BSpraying apparatus13%

H10DInorganic electric semiconductor devices13%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation13%

H10NElectric solid-state devices not otherwise provided for13%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1013%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution13%

Y02PClimate change mitigation technologies in the production or processing of goods13%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%

PatentTitleYear

5,177,578'Polycrystalline silicon thin film and transistor using the same'1993 5,002,928'Method for forming oxide superconducting films with an ultrasonic wave sprayer'1991 4,742,012'Method of making graded junction containing amorphous semiconductor device'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1991Patents assigned to TOA NENRYO KOGYO KK (2)· patent assignee history

1988–1993Based in Ohi, JP· patent location history

1991Based in Kamakura, JP· patent location history

1993Patents assigned to TONEN CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TOA NENRYO KOGYO KK	2	1988–1991
TONEN CORP	1	1993

Locations

Location	Patents	Span
Ohi, JP	2	1988–1993
Kamakura, JP	1	1991