Inventor
Masao Takada
Inventor
Tokyo, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Fprimary
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium33%
B24BMachines, devices, or processes for grinding or polishing17%
B65BMachines, apparatus or devices for, or methods of, packaging articles or materials17%
C07CAcyclic or carbocyclic compounds17%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1017%
PatentTitleYear
5,989,105'Method and apparatus for polishing chamfers of semiconductor wafers'19995,550,275'Method of preparing diarylchlorophosphate'19965,344,968'Method for producing o-alkoxybenzoic acid'19945,074,738'Method and apparatus for take out and transport of upright objects such as ampules from storage/transport case and this case itself'19914,857,238'Manufacturing method for alkyldihalogenophosphines'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–1996Patents assigned to NIPPON CHEMICAL IND (3)· patent assignee history
1989–1996Based in Tokyo, JP· patent location history
1991Patents assigned to EISAI CO LTD (1)· patent assignee history
1991Based in Honjo, JP· patent location history
1999Patents assigned to MITSUBISHI MATERIAL SILICON (1)· patent assignee history
1999Patents assigned to MITSUBISHI MATERIALS CORP (1)· patent assignee history
1999Based in Hyogo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON CHEMICAL IND | 3 | 1989–1996 |
| EISAI CO LTD | 1 | 1991 |
| MITSUBISHI MATERIAL SILICON | 1 | 1999 |
| MITSUBISHI MATERIALS CORP | 1 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 3 | 1989–1996 |
| Hyogo, JP | 1 | 1999 |
| Honjo, JP | 1 | 1991 |