Inventor
Kohei Shizuka
Inventor
Fujisawa, JP
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds44%
C07CAcyclic or carbocyclic compounds22%
C25DProcesses for the electrolytic or electrophoretic production of coatings11%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons11%
G01NInvestigating or analysing materials by determining their chemical or physical properties11%
PatentTitleYear
5,080,495'Method and apparatus for measuring thermal diffusivity by ac joule-heating'19924,921,933'Aromatic polyamide molded article having storage modulus'19904,795,795'Catalytic preparation of polyamide or polyamide-polymide with N,N\'-dimethyl alkylene urea solvent'19894,785,069'Preparation process of heat-resistant polymers from polycarboxylic acids or anhydrides in the presence of an alkali metal fluoride and quaternary onium salt'19884,758,649'Heat resistant organic synthetic fibers and process for producing the same'19884,736,008'Preparation process of heat-resistant polymers from polycarboxcylic acids and anhydrides in the presence of an alkali metal fluoride'19884,345,101'Process for purifying an aqueous solution of acrylamide'19824,108,893'Purification of an aqueous solution of acrylamide'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1992Patents assigned to MITSUI TOATSU CHEMICALS (8)· patent assignee history
1978Based in Mobara, JP· patent location history
1982Based in Chiba, JP· patent location history
1988Patents assigned to KURARAY CO (1)· patent assignee history
1988–1990Based in Fujisawa, JP· patent location history
1992Based in Yokohama, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUI TOATSU CHEMICALS | 8 | 1978–1992 |
| KURARAY CO | 1 | 1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Fujisawa, JP | 5 | 1988–1990 |
| Yokohama, JP | 1 | 1992 |
| Chiba, JP | 1 | 1982 |
| Mobara, JP | 1 | 1978 |