Inventor

Takayuki Katto

Inventor

Iwaki, JP

Overview

1976–1996

Patent span

Chemistry

Primary field (CPC C)

Patents· 64 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 bonds25%

C08LCompositions of macromolecular compounds22%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients11%

B29CShaping or joining of plastics7%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts7%

C08JWorking-up7%

D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons6%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds3%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%

Y10TTechnical subjects covered by former us classification3%

PatentTitleYear

5,554,723'Process for production of poly(arylene thioether) containing phthalic anhydride groups'1996 5,380,819'Resin composition including poly(arylene thioether) and polyamide'1995 5,286,814'Heat-resistant stretched film and production process thereof'1994 5,283,286'Impact-resistant thermoplastic resin composition containing a grafted butadiene rubber'1994 5,268,451'Process for the preparation of cross-linked polyarylene sulfide'1993 5,256,763'Process for production of poly(arylene thioether) copolymer'1993 5,200,500'Process for the preparation of cross-linked polyarylene sulfide'1993 5,187,257'Thermoformed polyarylene sulfide container'1993 5,179,194'Process for production of polyarylenesulfides'1993 5,153,264'Poly(arylene thioether) block copolymer and production process thereof'1992 5,153,278'Poly(arylene thioether) block copolymer and production process thereof'1992 5,153,279'Poly(arylene thioether) block copolymer and production process thereof'1992 5,134,206'Polymer alloy of polyarylene thioether and a process for producing the same'1992 5,120,808'Poly(arylene thioether) block copolymer and production process thereof'1992 5,110,681'Melt-stable poly(arylene thioether-ketone) prepregs and molded or formed products thereof'1992 5,085,819'Heat-resistant resin compositions, and heat-resistant molded or formed articles and production process thereof'1992 5,045,630'Poly(arylene thioether-ketones) improved in melt stability and preparation process thereof'1991 5,021,523'Polymer alloy of polyarylene thioether and a process for producing the same'1991 5,008,370'Poly(arylene thioether-ketones) improved in melt stability and preparation process thereof'1991 4,985,512'High-lubricity film'1991 4,980,114'Stretched poly(arylene thioether) block copolymer films and production process thereof'1990 4,975,479'Heat-resistant thermoplastic resin composition'1990 4,962,143'Poly(arylene thioether) block copolymer fibers and production process thereof'1990 4,960,555'Poly (arylene thioether) block copolymer fibers and production process thereof'1990 4,960,806'Stretched poly(arylene thioether) block copolymer films and production process thereof'1990 4,935,473'Polyphenylene sulfide composition and method of producing the same'1990 4,931,516'Process for producing polyarylene sulfide in titanium vessel with addition of water'1990 4,897,238'Stretched poly(arylene thioether-ketone) films and production process thereof'1990 4,895,691'Poly(arylene thioether-ketone) fibers and production process thereof'1990 4,895,912'Stretched poly(arylene thioether-ketone) films and production process thereof'1990 4,895,924'Poly(arylene thioether-ketone) fibers and production process thereof'1990 4,895,925'Melt-stable poly(arylene thioether-ketone) and production process thereof'1990 4,895,893'Heat-resistant resin compositions, and heat-resistant molded or formed articles and production process thereof'1990 4,895,892'Melt-stable poly(arylene thioether-ketone) compositions'1990 4,886,871'Melt-stable poly(arylene thioetherketone) and production process thereof'1989 4,873,283'Molded or formed poly(arylene thioether-ketone) articles'1989 4,868,240'Polyarylene thioether of high crystallizing rate and a process for producing the same'1989 4,863,669'Process for forming polyarylenethioether stretched blow-molded vessel'1989 4,859,734'Composition of polyarylene thioether'1989 4,837,294'Polyarylene thioether composition containing polyarylene ether nucleating agent'1989 4,826,906'Poly(arylene thioether-ketone) compositions improved in both melt stability and crystallinity'1989 4,820,759'Polyarylene thiother composition'1989 4,814,430'Process for producing poly(arylene sulfide) of reduced alkali metal content'1989 4,812,539'Polyarylene sulfide preparation in titanium reaction vessel with two distinct temperature ranges'1989 4,801,416'Transparent and little colored polyarylenethioether primary melt molding, preparation and utilization thereof'1989 4,795,671'Para-phenylene sulfide block copolymers, process for the production of the same and use thereof'1989 4,794,164'Process for producing a polyarylene sulfide of excellent handling property and a polyarylene sulfide produced by the process thereof'1988 4,785,057'Para-phenylene sulfide block copolymer, process for the production of the same'1988 4,748,205'Thermoplastic resin composition'1988 4,746,698'Method of preventing corrosion of apparatus for melt-processing polyarylene thioethers'1988 4,745,167'Polyarylene sulfide preparation in titanium reaction vessel with two distinct temperature ranges'1988 4,732,935'Thermoplastic resin composition'1988 4,701,495'Thermoplastic resin composition'1987 4,699,975'Process for producing readily crystallizable arylenesulfide resin composition containing organic acid or anhydride'1987 4,659,789'Phenylene sulfide resin compositions'1987 4,645,826'Process for production of high to ultra-high molecular weight linear polyarylenesulfides'1987 4,636,553'Thermoplastic resin composition'1987 4,613,654'Polyarylenesulfide complexes, processes for production and uses thereof'1986 4,447,578'Thermoplastic resin composition'1984 4,431,772'Vinyl chloride resin composition'1984 4,352,910'Vinyl chloride resin composition with multi-stage impact modifier'1982 4,315,081'Antistatic resin composition'1982 4,021,509'Production of impact-resistant, thermoplastic resin compositions'1977 3,956,424'Photo-degradable resin composition'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1996Patents assigned to KUREHA CHEMICAL IND CO LTD (61)· patent assignee history

1976–1996Based in Iwaki, JP· patent location history

1987–1988Based in Fukushima, JP· patent location history

1988Patents assigned to KUREHA KAGAWA KOGYO KABUSHIKI (1)· patent assignee history

1990Patents assigned to KUREHA KAGAKU KOGHO K K (1)· patent assignee history

1990Patents assigned to POLYPLASTICS CO (1)· patent assignee history

1992Patents assigned to KUREHA KABAKU KOGYO K K (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KUREHA CHEMICAL IND CO LTD	61	1976–1996
KUREHA KABAKU KOGYO K K	1	1992
KUREHA KAGAKU KOGHO K K	1	1990
KUREHA KAGAWA KOGYO KABUSHIKI	1	1988
POLYPLASTICS CO	1	1990

Locations

Location	Patents	Span
Iwaki, JP	59	1976–1996
Fukushima, JP	5	1987–1988