Inventor
Toshimasa Yamanaka
Inventor
Tokyo, JP
Overview
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Bprimary
G03BApparatus or arrangements for taking photographs or for projecting or viewing them79%
B41JTypewriters11%
G02BOptical elements, systems or apparatus5%
H01HElectric switches5%
PatentTitleYear
5,917,533'Thermal line printer'19995,638,104'Thermal line printer'19975,621,495'Representation of depth of field in camera'19975,602,616'Exposure control apparatus of camera'19975,510,875'Representation of depth of field in camera'19965,485,242'Exposure control apparatus of camera'1996D0362267'Printer'1995D0361084'Printer'19955,382,997'Exposure control apparatus of camera'19955,280,319'Exposure control apparatus of camera including exposure factor limit value setting means'19945,170,206'Indicating apparatus within finder of camera'1992D0331576'Barcode scanner'19925,066,967'Single-lens reflex camera with built-in flash'19915,065,177'SLR camera with auxiliary light emitter'1991D0319228'Barcode reader'19915,036,343'Camera with side-mounted balancer'19915,019,852'Representation of depth of field in camera'19914,977,425'Indicating apparatus within finder of camera'19904,949,118'Indicating apparatus within finder of single-lens reflex camera'19904,918,264'Actuating mechanism and multiposition rubber or membrane switch device'19904,910,542'Single-lens reflex camera with built-in flash'1990D0306606'Pair of binoculars'19904,893,140'Single-lens reflex camera with built-in flash'19904,887,114'Back-cover release device for a camera'1989D0297242'Telescope'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–1999Patents assigned to ASAHI OPTICAL CO LTD (25)· patent assignee history
1988–1999Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ASAHI OPTICAL CO LTD | 25 | 1988–1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 25 | 1988–1999 |