Inventor
Takehiko Okamoto
Inventor
Kurashiki, JP
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation19%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
C07CAcyclic or carbocyclic compounds6%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds6%
Y10TTechnical subjects covered by former us classification6%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%
C08JWorking-up3%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients3%
C08LCompositions of macromolecular compounds3%
PatentTitleYear
11,032,429Device controller, communication terminal, device control method, compensation calculation method, and device control system202111,011,706Organic semiconductor element, organic semiconductor composition, organic semiconductor film, method of manufacturing organic semiconductor film, and polymer using the same202110,954,386Silicone admixture and cured product of the same20215,340,480'Polysulfone-based hollow fiber membrane and process for manufacturing the same'19944,938,778'Composite hollow fiber type separation membranes processes for the preparation thereof and their use'19904,874,522'Polysulfone hollow fiber membrane and process for making the same'19894,664,669'Composite hollow fiber-type separation membranes, processes for the preparation thereof and their use'19874,547,289'Filtration apparatus using hollow fiber membrane'19854,325,915'Bulk polymerization reactor'19824,279,752'Polyvinyl alcohol semi-permeable membrane and method for producing same'19813,981,944'Method for producing impact resistant thermoplastic resin by continuous bulk polymerization'19763,966,822'Catalytic preparation of ketones from aldehydes'19763,950,455'Method for graft polymerization of diene polymer'19763,944,622'Method for producing ketones'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1982Patents assigned to TORAY INDUSTRIES (3)· patent assignee history
1976Patents assigned to CHISSO CORP (2)· patent assignee history
1976–2021Based in Aichi, JP· patent location history
1976–1982Based in Nagoya, JP· patent location history
1976Based in Yokohama, JP· patent location history
1981–1994Patents assigned to KURARAY CO (5)· patent assignee history
1981–1994Based in Kurashiki, JP· patent location history
2021Patents assigned to FUJIFILM CORP (1)· patent assignee history
2021Patents assigned to KDDI CORP (1)· patent assignee history
2021Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KURARAY CO | 5 | 1981–1994 |
| TORAY INDUSTRIES | 3 | 1976–1982 |
| CHISSO CORP | 2 | 1976 |
| FUJIFILM CORP | 1 | 2021 |
| KDDI CORP | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kurashiki, JP | 6 | 1981–1994 |
| Tokyo, JP | 2 | 2021 |
| Aichi, JP | 2 | 1976–2021 |
| Nagoya, JP | 2 | 1976–1982 |
| Yokohama, JP | 1 | 1976 |