Inventor

Takatsugu Hashimoto

Inventor

Akron, OH, US

Overview

25→

Patents

1985–2003

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.

C08Kprimary

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients24%

C08LCompositions of macromolecular compounds16%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds10%

Y10TTechnical subjects covered by former us classification8%

B60CVehicle tyres6%

B29CShaping or joining of plastics5%

B29DProducing particular articles from plastics or from substances in a plastic state5%

C07CAcyclic or carbocyclic compounds5%

A43BCharacteristic features of footwear3%

A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing3%

PatentTitleYear

6,531,527'Viscosity-stabilizer-containing natural rubber latex and natural rubber and a production process thereof'2003 6,103,808'High aromatic oil and rubber composition and oil extended synthetic rubber using the same'2000 5,998,513'Rubber composition containing an asphaltene-containing softening agent'1999 5,587,417'Rubber composition for tire tread'1996 5,531,256'Flame-retardant rubber tires'1996 5,489,660'Copolymers of conjugated dienes and aromatic vinyl compounds prepared by continuous process'1996 5,341,862'Flame-retardant rubber tires'1994 5,340,867'Flame-retardant rubber compositions'1994 5,331,036'Oil extended ultra high molecular weight elastomers'1994 5,272,203'High performance tire treads and tires'1993 5,260,370'Oil extended ultra high molecular weight elastomers'1993 5,231,152'Continuous process for preparing copolymers of conjugated dienes and aromatic vinyl compounds'1993 5,202,363'Anhydrous metal salts of .alpha.,.beta.-ethylenically unsaturated carboxylic acids and related methods'1993 5,147,951'Method for preparing ultra high molecular weight copolymers of conjugated dienes and aromatic vinyl compounds'1992 5,143,957'Solid golf balls reinforced with anhydrous metal salts of .alpha.,.beta.-ethylenically unsaturated carboxylic acids'1992 5,137,976'Anhydrous metal salts of .alpha.,.beta.-ethylenically unsaturated carboxylic acids and related methods'1992 5,120,794'Anhydrous metal salts of .alpha.-.beta.-ethylenically unsaturated carboxylic acids and related methods'1992 5,096,943'Method for incorporating metal salts of .alpha.,.beta.-ethylenically unsaturated carboxylic acids in polymers'1992 5,093,402'Solid golf balls reinforced with metal salts of .alpha.,.beta.-ethylenically unsaturated carboxylic acids via solution masterbatch'1992 4,889,677'Process for curing tire employing a bladder lubricant'1989 4,814,214'Process for molding and vulcanizing rubber products'1989 4,714,734'Rubber compounds'1987 4,710,541'Process for molding and vulcanizing rubber products'1987 4,590,123'Low-resilience rubber compositions and foams'1986 4,546,127'Low-resilience rubber compositions and foams'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–1986Patents assigned to BRIDGESTONE TIRE CO LTD (2)· patent assignee history

1985–1986Based in Higashimurayama, JP· patent location history

1987–2003Patents assigned to BRIDGESTONE CORP (21)· patent assignee history

1987Patents assigned to JAPAN SYNTHETIC RUBBER CO LTD (1)· patent assignee history

1987Patents assigned to TOSHIBA SILICONE (1)· patent assignee history

1987–1989Based in Higashiyamato, JP· patent location history

1992–1993Patents assigned to BRIDGESTONE FIRESTONE INC (6)· patent assignee history

1992–1994Based in Akron, OH, US· patent location history

1992–1999Based in Tokyo, JP· patent location history

1994–2003Based in Kodaira, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BRIDGESTONE CORP	21	1987–2003
BRIDGESTONE FIRESTONE INC	6	1992–1993
BRIDGESTONE TIRE CO LTD	2	1985–1986
JAPAN SYNTHETIC RUBBER CO LTD	1	1987
TOSHIBA SILICONE	1	1987

Locations

Location	Patents	Span
Akron, OH, US	8	1992–1994
Kodaira, JP	5	1994–2003
Tokyo, JP	5	1992–1999
Higashiyamato, JP	4	1987–1989
Higashimurayama, JP	2	1985–1986