Inventor
Hidetaka Yamaguchi
Inventor
Tokyo, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus30%
H04NPictorial communication, e.g. television30%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices20%
G03GElectrography10%
H05KPrinted circuits10%
PatentTitleYear
7,242,892'Wet type image forming apparatus'20075,117,106'Scanning pattern drawing apparatus'19925,093,561'Drawing surface adjusting mechanism for scanning pattern drawing apparatus'19925,046,796'Apparatus for correcting scanning beams on basis of tilting of surface segments of polygonal mirror used in scanning pattern drawing apparatus'19915,043,566'Monitor mechanism for use with a scanning optical apparatus with composite drawing a monitoring beams'19915,027,137'Drawing surface adjusting mechanism for use with scanning pattern drawing apparatus'19915,017,949'Table assembly for pattern drawing apparatus'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–1992Patents assigned to ASAHI OPTICAL CO LTD (6)· patent assignee history
1991–2007Based in Tokyo, JP· patent location history
2007Patents assigned to PENTAX CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ASAHI OPTICAL CO LTD | 6 | 1991–1992 |
| PENTAX CORP | 1 | 2007 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 7 | 1991–2007 |