Shiga; Akinobu

Patent Applications and Registrations

Patent applications and USPTO patent grants for Shiga; Akinobu.The latest application filed is for "catalyst for olefin polymerization and process for producing olefin polymer using the catalyst".

Company Profile

0.23.0

Shiga; Akinobu - Ichihara JP
Shiga; Akinobu - Tokyo JP
Shiga; Akinobu - Niihama JP
Shiga; Akinobu - all Niihama JP
Shiga; Akinobu - Ehime JA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Catalyst for olefin polymerization and process for producing olefin polymer using the catalyst Grant 5,280,000 - Kakugo , et al. January 18, 1	1994-01-18
Process for producing olefin polymers and catalyst used therein Grant 4,891,411 - Sasaki , et al. January 2, 1	1990-01-02
Alpha-olefin block copolymer particles and process for the production thereof Grant 4,820,775 - Shiga , et al. April 11, 1	1989-04-11
Process for producing olefin polymers and catalyst used therein Grant 4,771,023 - Sasaki , et al. * September 13, 1	1988-09-13
Process for producing .alpha.-olefin polymers Grant 4,743,665 - Sasaki , et al. May 10, 1	1988-05-10
Catalyst and process for producing alpha-olefin polymers using the same Grant 4,672,050 - Sasaki , et al. June 9, 1	1987-06-09
Crystalline propylene polymer composition Grant 4,551,501 - Shiga , et al. November 5, 1	1985-11-05
Catalyst and process using same for producing olefin polymer Grant 4,533,706 - Shiga , et al. August 6, 1	1985-08-06
Olefin polymerization catalysts and process for producing olefin polymers by using such catalysts Grant 4,504,637 - Shiga , et al. March 12, 1	1985-03-12
Process for producing highly stereoregular .alpha.-olefin polymers Grant 4,485,035 - Shiga , et al. November 27, 1	1984-11-27
Process for producing highly stereoregular .alpha.-olefin polymers Grant 4,412,049 - Shiga , et al. October 25, 1	1983-10-25
Process for producing propylene copolymer Grant 4,367,322 - Shiga , et al. January 4, 1	1983-01-04
Process for producing olefin polymers Grant 4,364,851 - Shiga , et al. December 21, 1	1982-12-21
Process for producing propylene-ethylene block copolymers Grant 4,337,326 - Shiga , et al. June 29, 1	1982-06-29
Catalyst system Grant 4,279,776 - Shiga , et al. July 21, 1	1981-07-21
Process for producing propylene-ethylene block copolymers Grant 4,254,237 - Shiga , et al. March 3, 1	1981-03-03
Olefin polymerization catalyst Grant 4,246,135 - Shiga , et al. January 20, 1	1981-01-20
Process for producing highly stereoregular .alpha.-olefin polymers Grant 4,235,984 - Shiga , et al. November 25, 1	1980-11-25
Catalysts for the polymerization of olefins Grant 4,165,298 - Shiga , et al. August 21, 1	1979-08-21
Catalysts for polymerization of olefins Grant 4,123,387 - Shiga , et al. October 31, 1	1978-10-31
Process for producing propylene homopolymers and copolymers Grant 4,053,697 - Asada , et al. October 11, 1	1977-10-11
Catalyst for polymerization of olefins and process for preparing the same Grant 3,960,765 - Shiga , et al. June 1, 1	1976-06-01
Process for reusing polymerization solvent by recycling Grant 3,931,135 - Asada , et al. January 6, 1	1976-01-06

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