Inventor
Yasuhumi Toyokawa
Inventor
Tokyo, JP
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A01Nprimary
A01NPreservation of bodies of humans or animals or plants or parts thereof50%
C07DHeterocyclic compounds50%
PatentTitleYear
5,081,244'Pyrimidine derivatives, processes for their production, and herbicidal method and compositions'19924,985,066'2-phenoxypyrimidine derivative and herbicidal composition'19914,932,999'Pyrimidine compounds, and herbicidal method and compositions'19904,931,087'Picolinic acid derivatives and herbicidal compositions'19904,923,501'Pyrimidine derivatives, processes for their production, and herbicidal method and compositions'19904,906,285'Pyrimidine derivatives and herbicidal method and compositions'19904,900,352'2-Phenoxypyimidine derivative and herbicidal composition'19904,832,729'Picolinic acid derivatives and herbicidal compositions'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–1992Patents assigned to IHARA CHEMICAL IND CO (8)· patent assignee history
1989–1992Patents assigned to KUMIAI CHEMICAL INDUSTRY CO (8)· patent assignee history
1989–1991Based in Shizuoka, JP· patent location history
1990–1992Based in Tokyo, JP· patent location history
1990Based in Ogasa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IHARA CHEMICAL IND CO | 8 | 1989–1992 |
| KUMIAI CHEMICAL INDUSTRY CO | 8 | 1989–1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 4 | 1990–1992 |
| Shizuoka, JP | 3 | 1989–1991 |
| Ogasa, JP | 1 | 1990 |