Inventor
Keiichi Tomishige
Inventor
Sendai, JP
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds25%
C07DHeterocyclic compounds25%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry17%
C07BGeneral methods of organic chemistry17%
Y02PClimate change mitigation technologies in the production or processing of goods17%
PatentTitleYear
11,040,334Catalyst for reduction reaction of 3,4-dihydroxytetrahydrofuran, and method for producing 3,4-dihydroxytetrahydrofuran reduced product202110,751,704Hydrogenation reaction catalyst for 1,4-anhydroerythritol, method for producing 3-hydroxytetrahydrofuran, and method for producing 1,3-butane diol202010,584,092Method for producing aromatic nitrile compound and method for producing carbonate ester2020Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2020–2021Patents assigned to DAICEL CORP (2)· patent assignee history
2020Patents assigned to MITSUBISHI GAS CHEMICAL CO (1)· patent assignee history
2020Patents assigned to NIPPON STEEL & SUMITOMO METAL CORP (1)· patent assignee history
2020Patents assigned to NIPPON STEEL CORP (1)· patent assignee history
2020Patents assigned to NIPPON STEEL ENG CO LTD (1)· patent assignee history
2020–2021Based in Sendai, JP· patent location history
2020Based in Miyagi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DAICEL CORP | 2 | 2020–2021 |
| MITSUBISHI GAS CHEMICAL CO | 1 | 2020 |
| NIPPON STEEL & SUMITOMO METAL CORP | 1 | 2020 |
| NIPPON STEEL CORP | 1 | 2020 |
| NIPPON STEEL ENG CO LTD | 1 | 2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Sendai, JP | 2 | 2020–2021 |
| Miyagi, JP | 1 | 2020 |