Inventor
Masao Kawamura
Inventor
Akashi, JP
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds29%
C07DHeterocyclic compounds14%
G01NInvestigating or analysing materials by determining their chemical or physical properties9%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
B41MPrinting, duplicating, marking, or copying processes6%
C07HSugars6%
C12NMicroorganisms or enzymes6%
C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture6%
C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms6%
A61KPreparations for medical, dental or toiletry purposes3%
PatentTitleYear
7,220,762'Methods for stabilizing benzimidazole compounds'20075,175,372'Process of producing high purity bis(4-hydroxyphenyl)sulfides and heat-sensitive recording materials containing the same'19925,102,858'Heat-sensitive recording materials containing high purity bis(4-hydroxyphenyl)sulfides'19925,101,049'Novel thiophene derivatives and methods for producing the same'19924,943,655'Salt of 5-acetyl-2-alkylbenzenesulfonic acid'19904,853,158'Process for preparing N,N-dialkylaniline salt of 5-acetyl-2-alkylbenzene sulfonic acid'19894,849,138'Method of producing alkali metal benzenesulfinates'19894,835,317'4-tert.-butyl-1,2-benzenedithiol, complex compounds derived therefrom, and a method of producing the same'19894,792,612'Thiophene derivatives and methods for producing the same'19884,740,578'Process for producing polythiobisphenols and process for producing mercaptophenols by the hydrogenolysis of the same'19884,722,917'Anti-I sorbent'19884,604,349'Process for preparing uridine diphosphate-N-acetylgalactosamine'19864,569,909'Process for preparing uridine diphosphate-N-acetylgalactosamine'19864,273,941'Process for producing p-hydroxybenzaldehyde'19814,195,041'Process for producing p-hydroxybenzaldehyde'19804,124,646'Process for producing thioanisole'19784,054,499'Process for producing 2-chloropyridine'19773,969,205'Process for producing 2-chloropyridine'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1992Patents assigned to SEITETSU KAGAKU CO LTD (17)· patent assignee history
1976–1990Based in Akashi, JP· patent location history
1988–1992Based in Hyogo, JP· patent location history
2007Patents assigned to EISAI R&D MAN CO LTD (1)· patent assignee history
2007Based in Honjou, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SEITETSU KAGAKU CO LTD | 17 | 1976–1992 |
| EISAI R&D MAN CO LTD | 1 | 2007 |
Locations
| Location | Patents | Span |
|---|---|---|
| Akashi, JP | 12 | 1976–1990 |
| Hyogo, JP | 5 | 1988–1992 |
| Honjou, JP | 1 | 2007 |