Inventor

Nobutaka Uchikawa

Inventor

Takaishi, JP

Overview

25→

Patents

1983–2001

Patent span

Chemistry

Primary field (CPC C)

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 bonds25%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests22%

C08LCompositions of macromolecular compounds15%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients9%

C08JWorking-up6%

Y10TTechnical subjects covered by former us classification6%

B29CShaping or joining of plastics3%

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. inserts3%

D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons3%

B01DSeparation2%

PatentTitleYear

6,255,425'Syndiotactic polypropylene copolymer and extruded polypropylene articles'2001 5,656,371'Insulating composition and formed article thereof'1997 5,624,621'Process of making polyprophylene fibers'1997 5,548,007'Radiation-resistant polypropylene resin composition'1996 5,548,008'Radiation-resistant polypropylene resin composition'1996 5,478,646'Polypropylene fiber and a preparation process thereof'1995 5,428,127'Preparation process of syndiotactic polyproplene'1995 5,340,848'Radiation-resistant polypropylene resin composition'1994 5,314,956'Polypropylene resin compositions of high syndiotacticity and preparation process thereof'1994 5,278,216'Syndiotactic polypropylene resin composition'1994 5,266,641'Butene-1 copolymers and resin compositions containing the same'1993 5,232,992'Molded articles of syndiotactic polypropylene and method for preparing same'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 5,187,250'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 5,157,092'Polymer of 4-methylpentene-1'1992 5,098,967'Method of controlling the molecular weight of polypropylene'1992 4,772,661'Process for the production of block copolymer of propylene'1988 4,751,265'Production of propylene block copolymer'1988 4,725,338'Purification process of polymerization solvent'1988 4,632,976'Process for the continuous discharge of a slurry'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

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1997Patents assigned to MITSUI TOATSU CHEMICALS (24)· patent assignee history

1983–1997Based in Takaishi, JP· patent location history

1988–2001Based in Osaka, JP· patent location history

1997Patents assigned to MITSUBISHI CABLE IND LTD (1)· patent assignee history

1997Based in Chiyoda-ku, JP· patent location history

2001Patents assigned to MITSUI CHEMICALS INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITSUI TOATSU CHEMICALS	24	1983–1997
MITSUBISHI CABLE IND LTD	1	1997
MITSUI CHEMICALS INC	1	2001

Locations

Location	Patents	Span
Takaishi, JP	15	1983–1997
Osaka, JP	9	1988–2001
Chiyoda-ku, JP	1	1997