Inventor
Sadakatsu Kumoi
Inventor
Hikari, JP
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds56%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%
C01BNon-metallic elements6%
C01DCompounds of alkali metals, i.e. lithium, sodium, potassium, rubidium, caesium, or francium6%
C02FTreatment of water, waste water, sewage, or sludge6%
C07DHeterocyclic compounds6%
C25BElectrolytic or electrophoretic processes for the production of compounds or non-metals6%
Y02PClimate change mitigation technologies in the production or processing of goods6%
PatentTitleYear
6,896,865'Method for recovering hydrogen chloride from chlorine based waste and use of recovered hydrogen chloride'20055,948,265'Ion-exchanger, process for production thereof, and process for removal of multiply charged anions employing the ion-exchanger'19995,861,537'Method of producing high-quality polyethylenepolyamines'19995,279,717'Process for removing chlorate salt from aqueous alkali chloride solution'19945,039,424'Method for treating an amine-containing waste water'19914,906,782'Process for preparation of alkyleneamines'19904,845,297'Process for producing polyamines'19894,625,064'Method for producing bis [.beta.(N,N-dimethylamino)ethyl]ether'19864,492,803'Method for producing bis[.beta.-(N,N-dimethylamino)alkyl]-ether'19854,490,556'Method for preparing bis[.beta.-(N,N-dimethylamino)ethyl]ether'19844,182,919'Process for reaction in catalyst suspension system'19804,123,616'Process for hydrogenation of organic peroxide'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1990Patents assigned to TOYO SODA MFG CO LTD (7)· patent assignee history
1978–1980Based in Shinnanyo, JP· patent location history
1984–2005Based in Hikari, JP· patent location history
1989–1999Based in Yamaguchi, JP· patent location history
1991–2005Patents assigned to TOSOH CORP (5)· patent assignee history
1999Patents assigned to DELAMINE BV (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOYO SODA MFG CO LTD | 7 | 1978–1990 |
| TOSOH CORP | 5 | 1991–2005 |
| DELAMINE BV | 1 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hikari, JP | 8 | 1984–2005 |
| Yamaguchi, JP | 2 | 1989–1999 |
| Shinnanyo, JP | 2 | 1978–1980 |