Inventor
Ken Yoshitsugu
Inventor
Kuga-gun, JP
Overview
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Fprimary
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds40%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests30%
C08LCompositions of macromolecular compounds18%
C08JWorking-up5%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds2%
C10GCracking hydrocarbon oils2%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons2%
H01BCables2%
PatentTitleYear
8,604,140'Method for preventing fouling in chemical equipment and antifouling agent'20138,445,609'Method for producing olefin polymer'20136,329,465'Ethylene copolymer composition and uses thereof'20016,303,713'Graft modified ethylene .alpha.-olefin copolymer obtained by graft copolymerzing an ethylene/.alpha.-olefin copolymer with a polar monomer'20016,225,410'Ethylene/.alpha.-olefin copolymer and process for preparing the same'20016,043,325'Process for olefin polymerization'20006,001,941'Ethylene .alpha.-olefin copolymer obtained by copolymerizing ethylene with an .alpha.-olefin'19995,916,988'Ethylene random copolymers'19995,883,205'Process for the preparation of an ethylene copolymer and prepolymerized solid catalyst for olefin polymerization'19995,840,815'Gas-phase or slurry polymerization process for the preparation of an olefin polymer'19985,834,557'Graft modified ethylene/.alpha.-olefin copolymer composition'19985,795,838'Olefin polymerization catalyst and process for olefin polymerization'19985,714,426'Olefin polymerization catalyst'19985,708,080'Graft modified ethylene/.alpha.-olefin copolymer'19985,703,180'Catalyst for olefin polymerization, process for olefin polymerization using the same, ethylene/.alpha.-olefin copolymer, graft modified ethylene/.alpha.-olefin copolymer, and ethylene copolymer composition'19975,639,842'Ethylene random copolymers'19975,543,377'Olefin polymerization catalysts and methods of olefin polymerization'19965,539,069'Olefin polymerization catalysts and methods of olefin polymerization'19965,525,689'Process for preparing ethylene copolymers'19965,464,905'Ethylene/.alpha.-olefin copolymer composition, graft modified ethylene/.alpha.-olefin copolymer composition, ethylene copolymer composition, and multi-stage olefin polymerization process'19955,455,316'Olefin polymerization solid catalyst, olefin polymerization catalyst and olefin polymerization'19955,374,700'Ethylene copolymer'19945,308,816'Olefin polymerization solid catalyst, olefin polymerization catalyst and olefin polymerization'19945,218,071'Ethylene random copolymers'19935,126,301'Solid catalyst for polymerizing an olefin'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–1998Patents assigned to MITSUI PETROCHEMICAL IND (15)· patent assignee history
1992Based in Ohtake, JP· patent location history
1993–2001Based in Kuga-gun, JP· patent location history
1994–2001Based in Yamaguchi, JP· patent location history
1998–2013Patents assigned to MITSUI CHEMICALS INC (8)· patent assignee history
2013Patents assigned to TOHI YASUSHI (2)· patent assignee history
2013Patents assigned to YOSHITSUGU KEN (2)· patent assignee history
2013Patents assigned to AKIYAMA NAOYA (1)· patent assignee history
2013Based in Otake, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUI PETROCHEMICAL IND | 15 | 1992–1998 |
| MITSUI CHEMICALS INC | 8 | 1998–2013 |
| TOHI YASUSHI | 2 | 2013 |
| YOSHITSUGU KENself | 2 | 2013 |
| AKIYAMA NAOYA | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kuga-gun, JP | 18 | 1993–2001 |
| Yamaguchi, JP | 4 | 1994–2001 |
| Otake, JP | 2 | 2013 |
| Ohtake, JP | 1 | 1992 |