Inventor
Kazuo Ohtsuki
Inventor
Tokyo, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Dprimary
C07DHeterocyclic compounds33%
C07CAcyclic or carbocyclic compounds22%
C07JSteroids22%
A61KPreparations for medical, dental or toiletry purposes11%
C07HSugars11%
PatentTitleYear
5,648,507'14.alpha.-hydroxy-4-androstene-3,6,17-trione hydrate and process for producing same'19975,614,651'14.alpha.-hydroxy-4-androstene-3,6,17-trione hydrate crystal and process for producing same'19975,326,753'Freeze-dried composition containing a 2-dimethylamino etoposide derivative'19945,103,022'Process for producing an optically active aminoketone derivative'19925,057,535'Derivatives of an aminoketone'19914,997,923'Dihydrate crystals of etoposide-2-dimethylamino compound hydrochloride and a process for production thereof'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–1997Patents assigned to NIPPON KAYAKU KK (5)· patent assignee history
1991–1997Based in Tokyo, JP· patent location history
1997Patents assigned to SNOW BAND MILK PRODUCTS CO LTD (1)· patent assignee history
1997Patents assigned to SNOW BRANK MILK PRODUCTS CO LT (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON KAYAKU KK | 5 | 1991–1997 |
| SNOW BAND MILK PRODUCTS CO LTD | 1 | 1997 |
| SNOW BRANK MILK PRODUCTS CO LT | 1 | 1997 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 6 | 1991–1997 |