Inventor
Katsuyuki Ohshima
Inventor
Tokyo, JP
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Sprimary
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests23%
B41JTypewriters13%
B41MPrinting, duplicating, marking, or copying processes13%
B42DBooks13%
G06KGraphical data reading13%
Y10TTechnical subjects covered by former us classification10%
C10CWorking-up pitch, asphalt, bitumen, tar3%
G06FElectric digital data processing3%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes3%
G07CTime or attendance registers3%
PatentTitleYear
6,228,805'Thermal transfer printing sheet and process of double-side transfer printing'20016,162,160'Card and process for producing the same'20005,994,263'Card and process for producing the same'19995,815,190'Image forming method, image forming apparatus and image forming member'19985,599,765'Card and process for producing the same'19975,550,099'Image forming method, image forming apparatus and image forming member'19965,410,642'ID card issuing system'19955,318,941'Image forming method, image forming apparatus and image forming member'19945,066,384'Process for refining coal-derived heavy carbonaceous materials'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991Patents assigned to KUREHA CHEMICAL IND CO LTD (1)· patent assignee history
1991Patents assigned to SUMIKIN CHEMICAL (1)· patent assignee history
1991Patents assigned to SUMITOMO METAL IND (1)· patent assignee history
1991Based in Ibaraki, JP· patent location history
1994–2001Patents assigned to DAINIPPON PRINTING CO LTD (8)· patent assignee history
1994–2001Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DAINIPPON PRINTING CO LTD | 8 | 1994–2001 |
| KUREHA CHEMICAL IND CO LTD | 1 | 1991 |
| SUMIKIN CHEMICAL | 1 | 1991 |
| SUMITOMO METAL IND | 1 | 1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 8 | 1994–2001 |
| Ibaraki, JP | 1 | 1991 |