Inventor
Isao Hijikata
Inventor
Yokohama, JP
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus43%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them14%
G11BInformation storage based on relative movement between record carrier and transducer14%
H04NPictorial communication, e.g. television14%
H04SStereophonic systems14%
PatentTitleYear
7,424,332'Audio signal processing apparatus and related computer program'20085,172,149'Drive apparatus and drive control apparatus for optical system of camera'19925,055,932'Zoom lens apparatus with auto-focusing'19914,969,044'Automatic focusing system for use in cameras having zooming function'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–2008Patents assigned to VICTOR COMPANY OF JAPAN (4)· patent assignee history
1990–1992Based in Yokohama, JP· patent location history
2008Based in Komae, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| VICTOR COMPANY OF JAPAN | 4 | 1990–2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 3 | 1990–1992 |
| Komae, JP | 1 | 2008 |