Inventor
Keiji Mitarai
Inventor
Shinnanyo, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds38%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry8%
B82YSpecific uses or applications of nanostructures8%
C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals8%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds8%
C02FTreatment of water, waste water, sewage, or sludge8%
C07DHeterocyclic compounds8%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds8%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients8%
PatentTitleYear
5,039,424'Method for treating an amine-containing waste water'19914,980,507'Process for producing polyethylenepolyamine'19904,845,297'Process for producing polyamines'19894,758,600'Process for the manufacture of ethanol'19884,625,064'Method for producing bis [.beta.(N,N-dimethylamino)ethyl]ether'19864,492,803'Method for producing bis[.beta.-(N,N-dimethylamino)alkyl]-ether'19854,157,379'Process for producing chain structured corpuscular calcium carbonate'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1989Patents assigned to TOYO SODA MFG CO LTD (4)· patent assignee history
1979–1986Based in Shinnanyo, JP· patent location history
1988Patents assigned to AGENCY IND SCIENCE TECHN (1)· patent assignee history
1988Based in Sagamihara, JP· patent location history
1989–1990Based in Yamaguchi, JP· patent location history
1990–1991Patents assigned to TOSOH CORP (2)· patent assignee history
1991Based in Tokuyama, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOYO SODA MFG CO LTD | 4 | 1979–1989 |
| TOSOH CORP | 2 | 1990–1991 |
| AGENCY IND SCIENCE TECHN | 1 | 1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Shinnanyo, JP | 3 | 1979–1986 |
| Yamaguchi, JP | 2 | 1989–1990 |
| Tokuyama, JP | 1 | 1991 |
| Sagamihara, JP | 1 | 1988 |