Inventor

Sachio Ishioka

Inventor

Tokyo, JP

Overview

23→

Patents

1976–1993

Patent span

Electricity

Primary field (CPC H)

Patents· 23 as inventor

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

H01Jprimary

H01JElectric discharge tubes or discharge lamps33%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation23%

G03GElectrography10%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution8%

Y02PClimate change mitigation technologies in the production or processing of goods5%

B23DPlaning3%

B60CVehicle tyres3%

C23CCoating metallic material3%

C30BSingle-crystal growth3%

G02BOptical elements, systems or apparatus3%

PatentTitleYear

5,233,265'Photoconductive imaging apparatus'1993 5,101,255'Amorphous photoelectric conversion device with avalanche'1992 4,980,736'Electric conversion device'1990 4,952,839'Photoconductive device and method of operating the same'1990 4,900,975'Target of image pickup tube having an amorphous semiconductor laminate'1990 4,888,521'Photoconductive device and method of operating the same'1989 4,884,011'Light-detecting device'1989 RE033094'Electrophotographic member with alpha-si layers'1989 4,829,345'Electronic device having light transmission system'1989 4,636,682'Image pickup tube'1987 4,626,885'Photosensor having impurity concentration gradient'1986 4,609,846'Image pick-up tube having collector and balance electrodes'1986 4,564,784'Reduced degradation, high resolution image pickup tube'1986 4,556,817'Photoelectric conversion apparatus'1985 4,554,478'Photoelectric conversion element'1985 4,419,604'Light sensitive screen'1983 4,394,749'Photoelectric device and method of producing the same'1983 4,380,557'Method of production of image pickup device'1983 4,378,417'Electrophotographic member with .alpha.-Si layers'1983 4,377,628'Electrophotographic member with .alpha.-Si and H'1983 4,365,013'Electrophotographic member'1982 4,121,537'Apparatus for vacuum deposition'1978 3,960,618'Epitaxial growth process for compound semiconductor crystals in liquid phase'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1993Patents assigned to HITACHI LTD (21)· patent assignee history

1976–1986Based in Tokyo, JP· patent location history

1987–1989Based in Toshima-ku, JP· patent location history

1989–1993Patents assigned to JAPAN BROADCASTING CORP (5)· patent assignee history

1989–1993Based in Burlingame, CA, US· patent location history

1992Patents assigned to ANDO FUMIHIKO (1)· patent assignee history

1992Patents assigned to HIRAI TADAAKI (1)· patent assignee history

1992Patents assigned to ISHIOKA SACHIO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	21	1976–1993
JAPAN BROADCASTING CORP	5	1989–1993
ANDO FUMIHIKO	1	1992
HIRAI TADAAKI	1	1992
ISHIOKA SACHIOself	1	1992

Locations

Location	Patents	Span
Tokyo, JP	13	1976–1986
Burlingame, California, US	8	1989–1993
Toshima-ku, JP	2	1987–1989