Itagaki; Takaharu

Patent Applications and Registrations

Patent applications and USPTO patent grants for Itagaki; Takaharu.The latest application filed is for "vinylamine copolymer, flocculating agent and paper strength increasing agent using the same, as well as process for producing the same".

Company Profile

0.11.0

Itagaki; Takaharu - Yokohama JP
Itagaki; Takaharu - Kitakyushu 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
Vinylamine copolymer, flocculating agent and paper strength increasing agent using the same, as well as process for producing the same Grant 5,064,909 - Itagaki , et al. November 12, 1	1991-11-12
Vinylamine copolymer and process for producing same Grant 5,037,927 - Itagaki , et al. August 6, 1	1991-08-06
Vinylamine copolymer, flocculating agent etc. Grant 4,957,977 - Itagaki , et al. September 18, 1	1990-09-18
Feed additive for ruminants Grant 4,937,083 - Itagaki , et al. June 26, 1	1990-06-26
Porous cross-linked polyvinyl alcohol particles, process for producing the same, and separating agent composed of the same Grant 4,863,972 - Itagaki , et al. September 5, 1	1989-09-05
Method for rendering a flammable polymer material flame-resistant Grant 4,857,576 - Kochi , et al. August 15, 1	1989-08-15
Separating agent with fluoroalkyl group Grant 4,696,745 - Itagaki , et al. September 29, 1	1987-09-29
Method for increasing the porosity of a cross-linked copolymer Grant 4,543,365 - Itagaki , et al. September 24, 1	1985-09-24
Weakly acidic cation exchange resin and process for producing same Grant 4,350,773 - Itagaki , et al. September 21, 1	1982-09-21
Weakly acidic cation exchange resin and process for producing same Grant 4,306,031 - Itagaki , et al. December 15, 1	1981-12-15
Method For The Production Of Acrylamide Crystals Grant 3,666,809 - Okuno , et al. May 30, 1	1972-05-30

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