Inventor

Takaaki Yamagata

Inventor

Yokohama, JP

Overview

4→

Patents

1979–1983

Patent span

Physics

Primary field (CPC G)

Patents· 4 as inventor

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

G02Bprimary

G02BOptical elements, systems or apparatus38%

C23CCoating metallic material13%

G03GElectrography13%

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

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

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

PatentTitleYear

4,397,933'Hydrogenated amorphous silicon photoconductive layer'1983 4,329,577'Focus detecting device with photo-sensor array'1982 4,189,232'Range detecting method and apparatus'1980 4,178,098'Range detecting method and apparatus'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1983Patents assigned to CANON KK (4)· patent assignee history

1979–1983Based in Yokohama, JP· patent location history

1982Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CANON KK	4	1979–1983

Locations

Location	Patents	Span
Yokohama, JP	3	1979–1983
Tokyo, JP	1	1982