Inventor

Tadashi Asanuma

Inventor

Takaishi, JP

Overview

67→

Patents

1980–2001

Patent span

Chemistry

Primary field (CPC C)

Patents· 67 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 bonds22%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests18%

C08LCompositions of macromolecular compounds14%

C08JWorking-up7%

Y10TTechnical subjects covered by former us classification6%

B29CShaping or joining of plastics5%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%

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. inserts4%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients3%

C09JAdhesives3%

PatentTitleYear

6,255,425'Syndiotactic polypropylene copolymer and extruded polypropylene articles'2001 6,197,894'Preparation of hydrogenated product of cyclic olefin ring-opening metathesis polymer'2001 6,121,394'Metallocene-catalyzed olefin polymerization in the absence of aluminoxane'2000 6,063,725'Olefin polymerization catalyst system'2000 5,952,426'Method for preparing molded articles of cross-linked polyolefin'1999 5,888,636'Multi-layer blow molded article of polypropylene'1999 5,840,389'Transparent impact-resistant molded articles'1998 5,759,469'Method for preparing molded articles of syndiotactic polypropylene'1998 5,637,367'Transparent impact-resistant molded articles'1997 5,624,621'Process of making polyprophylene fibers'1997 5,591,817'Molded articles of syndiotactic polypropylene and method for preparing same'1997 5,548,008'Radiation-resistant polypropylene resin composition'1996 5,548,007'Radiation-resistant polypropylene resin composition'1996 5,534,595'Syndiotactic propylene copolymer, preparation of the same, and resin composition containing the same'1996 5,494,996'Polyimide resin composition'1996 5,480,965'Readily soluble, amorphous polyimide, and preparation process of same'1996 5,478,888'Preparation process of thermoplastic resin composite'1995 5,478,646'Polypropylene fiber and a preparation process thereof'1995 5,428,121'Method for preparing syndiotactic polypropylene'1995 5,428,127'Preparation process of syndiotactic polyproplene'1995 5,376,406'Method for preparing decomposable film and its utilization'1994 5,374,685'Syndiotactic propylene copolymer, method for preparing same, and its use'1994 5,373,059'Syndiotactic propylene copolymer, method for preparing same, and its use'1994 5,354,839'Polyimide and preparation process of same'1994 5,340,848'Radiation-resistant polypropylene resin composition'1994 5,334,684'.alpha.-olefin-alkenylsilane copolymer and method for preparing same'1994 5,326,824'Syndiotactic propylene copolymer, method for preparing same, and its use'1994 5,321,096'Polyimide composition'1994 5,321,087'Preparation process of thermoplastic resin composite'1994 5,314,957'Molded article of crosslinked polyolefin and method for preparing it'1994 5,314,956'Polypropylene resin compositions of high syndiotacticity and preparation process thereof'1994 5,300,620'Heat-resistant adhesive and method of adhesion by using adhesive'1994 5,278,216'Syndiotactic polypropylene resin composition'1994 5,266,641'Butene-1 copolymers and resin compositions containing the same'1993 5,260,395'Method for molding syndiotactic polypropylene and molded article'1993 5,252,700'Heat-resistant adhesive and method of adhesion by using adhesive'1993 5,232,992'Molded articles of syndiotactic polypropylene and method for preparing same'1993 5,225,507'Polymer and polypropylene resin composition'1993 5,219,968'Propylene copolymer'1993 5,212,247'Polypropylene resin compositions of high syndiotacticity and preparation process thereof'1993 5,206,324'Butene-1 copolymer and resin composition containing the same'1993 5,200,131'Method for molding syndiotactic polypropylene'1993 5,200,439'Method for increasing intrinsic viscosity of syndiotactic polypropylene'1993 5,187,250'Poly-.alpha.-olefins'1993 5,175,208'Method for preparing block copolymers of propylene'1992 5,169,924'Copolymer of propylene and butene-1'1992 5,166,225'Process for producing of crosslinked polyolefins'1992 5,157,092'Polymer of 4-methylpentene-1'1992 5,132,157'Stretched films of polyproplene'1992 5,098,967'Method of controlling the molecular weight of polypropylene'1992 5,085,895'Polyolefin resin composition'1992 5,082,893'Polyolefin resin compositions and applications thereof'1992 5,081,190'Block copolymer of propylene and a process for the production thereof'1992 5,045,597'.alpha.-olefin block copolymers and processes for preparing the same'1991 4,921,905'Process for the production of block copolymer of propylene and ethylene'1990 4,772,661'Process for the production of block copolymer of propylene'1988 4,762,897'Process for recovering a mixture of unreacted ethylene and propylene'1988 4,751,265'Production of propylene block copolymer'1988 4,742,131'Method of controlling polymerization temperature'1988 4,729,772'Separation method of polymer powder and carrier gas'1988 4,725,338'Purification process of polymerization solvent'1988 4,659,755'Method of continuously operating a counter-flow washing column'1987 4,632,976'Process for the continuous discharge of a slurry'1986 4,581,426'Process for polymerization of .alpha.-olefins and catalysts therefor'1986 4,468,257'Washing and removal method of high molecular substances'1984 4,409,378'Process for polymerization of .alpha.-olefins and catalysts therefor'1983 4,220,745'Process for polymerization of .alpha.-olefins'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1998Patents assigned to MITSUI TOATSU CHEMICALS (60)· patent assignee history

1980–1984Based in Izumi, JP· patent location history

1986–1999Based in Takaishi, JP· patent location history

1986–2000Based in Osaka, JP· patent location history

1993–1996Based in Kanagawa, JP· patent location history

1998–2001Patents assigned to MITSUI CHEMICALS INC (7)· patent assignee history

2001Based in Chiba, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITSUI TOATSU CHEMICALS	60	1980–1998
MITSUI CHEMICALS INC	7	1998–2001

Locations

Location	Patents	Span
Takaishi, JP	36	1986–1999
Osaka, JP	19	1986–2000
Kanagawa, JP	6	1993–1996
Izumi, JP	3	1980–1984
Chiba, JP	2	2001