Inventor

Katsuhiko Furuya

Inventor

Tokyo, JP

Overview

1976–2005

Patent span

Human necessities

Primary field (CPC A)

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

A61Bprimary

A61BDiagnosis35%

G02BOptical elements, systems or apparatus29%

H04LTransmission of digital information, e.g. telegraphic communication13%

H04NPictorial communication, e.g. television6%

A61MDevices for introducing media into, or onto, the body3%

F21VFunctional features or details of lighting devices or systems thereof3%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them3%

H04BTransmission3%

H05KPrinted circuits3%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1976–1980Patents assigned to KOKUSAI DENSHIN DENWA CO LTD (3)· patent assignee history

1976–2000Based in Tokyo, JP· patent location history

1984Patents assigned to MEDOS KENKYUSHO KK (1)· patent assignee history

1984Based in Wako, JP· patent location history

1992–2000Patents assigned to ASAHI OPTICAL CO LTD (10)· patent assignee history

1993Patents assigned to ASAHI KOGAKU KK (1)· patent assignee history

2003–2005Patents assigned to PENTAX CORP (2)· patent assignee history

2003–2005Based in Saitama, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations