Inventor
Tetsuo Shiraishi
Inventor
Hyogo, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B41Mprimary
B41MPrinting, duplicating, marking, or copying processes54%
C07DHeterocyclic compounds23%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
5,118,443'Developer for pressure-sensitive recording sheets, aqueous dispersion of the developer and method for preparing the developer'19924,950,330'Aqueous dispersion of a developer for pressure-sensitive recording sheet and a process for producing the same'19904,489,336'Pressure sensitive manifold paper'19844,443,614'Triarylmethane derivatives'19844,439,610'Process for preparing triarylmethane derivatives'19844,219,439'Method of making oil-containing microcapsules'19804,045,458'Process for preparing triarylmethane derivatives'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1992Patents assigned to KANZAKI PAPER MFG CO LTD (7)· patent assignee history
1977–1984Based in Nishinomiya, JP· patent location history
1980–1984Based in Amagasaki, JP· patent location history
1984–1990Based in Hyogo, JP· patent location history
1990–1992Patents assigned to SANKO KAIHATSU KAGAKU KENK (2)· patent assignee history
1992Based in Saitama, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KANZAKI PAPER MFG CO LTD | 7 | 1977–1992 |
| SANKO KAIHATSU KAGAKU KENK | 2 | 1990–1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hyogo, JP | 2 | 1984–1990 |
| Amagasaki, JP | 2 | 1980–1984 |
| Nishinomiya, JP | 2 | 1977–1984 |
| Saitama, JP | 1 | 1992 |