Inventor

Takaaki Unnai

Inventor

Mobara, JP

Overview

5→

Patents

1981–1993

Patent span

Electricity

Primary field (CPC H)

Patents· 5 as inventor

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

H01Jprimary

H01JElectric discharge tubes or discharge lamps71%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation14%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution14%

PatentTitleYear

5,218,264'Image pick-up tube and apparatus having the same'1993 5,021,705'Method of fabricating an image pick-up tube and target section used therewith'1991 4,883,562'Method of making a photosensor'1989 4,816,715'Image pick-up tube target'1989 4,293,586'Method for forming a fluorescent screen'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1993Patents assigned to HITACHI LTD (5)· patent assignee history

1981–1993Based in Mobara, JP· patent location history

1989–1993Patents assigned to JAPAN BROADCASTING CORP (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	5	1981–1993
JAPAN BROADCASTING CORP	3	1989–1993

Locations

Location	Patents	Span
Mobara, JP	5	1981–1993