Inventor
Keiichi Kameyama
Inventor
Tokyo, JP
Overview
Patents· 4 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 bonds36%
G02BOptical elements, systems or apparatus27%
C08LCompositions of macromolecular compounds18%
C08JWorking-up9%
G02CSpectacles9%
PatentTitleYear
9,274,252'Polycarbonate resin composition'20169,163,116'Polycarbonate resin composition'20158,058,384'Method for producing thermoplastic resin, polyester resin and polycarbonate resin, and their applications'20118,026,336'Polycarbonate resin composition and method of producing the same'2011Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2011–2016Patents assigned to MITSUBISHI GAS CHEMICAL CO (4)· patent assignee history
2011–2016Patents assigned to FURUHASHI HIROKI (3)· patent assignee history
2011–2016Patents assigned to KAMEYAMA KEIICHI (3)· patent assignee history
2011–2016Patents assigned to KANEKO KAZUAKI (3)· patent assignee history
2011–2016Patents assigned to KATO NORIYUKI (3)· patent assignee history
2011–2016Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUBISHI GAS CHEMICAL CO | 4 | 2011–2016 |
| FURUHASHI HIROKI | 3 | 2011–2016 |
| KAMEYAMA KEIICHIself | 3 | 2011–2016 |
| KANEKO KAZUAKI | 3 | 2011–2016 |
| KATO NORIYUKI | 3 | 2011–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 4 | 2011–2016 |