Inventor

Tadashi Sakurai

Inventor

Chiba, JP

Overview

29→

Patents

1979–2009

Patent span

Electricity

Primary field (CPC H)

Patents· 29 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

Y10Tprimary

Y10TTechnical subjects covered by former us classification8%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds7%

C08LCompositions of macromolecular compounds6%

C08JWorking-up5%

D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons5%

D04HMaking textile fabrics, e.g. from fibres or filamentary material5%

F02BInternal-combustion piston engines5%

H01BCables5%

H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy5%

Y02TClimate change mitigation technologies related to transportation5%

PatentTitleYear

7,583,012'Piezoelectric element and method for manufacturing piezoelectric element'2009 D0572488'Paint brush cover'2008 6,814,909'Indicator'2004 6,626,155'Fuel pump, fuel tank arrangement for engine'2003 D0476786'Squeegee'2003 5,948,832'Resin composition having active compound and vaporizable plasticizer, and molded product thereof'1999 5,616,627'Polypropylene resin composition, polypropylene resin foamed material and process for producing the same'1997 5,459,106'Method for manufacturing a semiconductor light emitting device'1995 5,208,016'Antimicrobial substance and antimicrobial resin composition containing ethylene copolymer'1993 5,009,951'Conjugate fibers and nonwoven molding thereof'1991 4,997,895'Aqueous dispersion of cationic polymer'1991 4,980,238'Aqueous dispersion of cationic polymer'1990 4,957,660'Electrically conductive plastic moldings and process for producing the same'1990 4,931,655'Apparatus for accelerated weather-testing of a sample using a metal halide lamp'1990 4,919,757'Aqueous dispersion of cationic polymer'1990 4,869,063'Exhaust gas control means for engine'1989 4,859,710'Lead accumulator'1989 4,840,029'Exhaust gas control means for engine'1989 4,840,847'Conjugate fibers and nonwoven molding thereof'1989 4,831,095'Novel ethylene copolymer and process for producing said copolymer'1989 4,816,739'DC/DC converter'1989 4,795,420'Exhaust gas control means for engine'1989 4,765,137'Exhaust gas control means for engine'1988 4,499,432'Low voltage op amp bias optimizer'1985 4,466,127'Entry apparatus of digital value in memory'1984 4,352,204'Entry apparatus of digital value in memory'1982 4,236,251'Frequency synthesizer receiver having memory for storing frequency data'1980 4,201,945'Phase comparing apparatus'1980 4,179,628'Flip-flop having reset preferential function'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1984Patents assigned to SANYO ELECTRIC CO (5)· patent assignee history

1979–1984Based in Neyagawa, JP· patent location history

1985–1990Based in Tokyo, JP· patent location history

1988–2003Patents assigned to YAMAHA MOTOR CO LTD (5)· patent assignee history

1988–2003Based in Iwata, JP· patent location history

1989–2004Patents assigned to SUMITOMO CHEMICAL CO (12)· patent assignee history

1989–1991Based in Chiba, JP· patent location history

1990Patents assigned to DAINIPPON PLASTICS (1)· patent assignee history

1990Patents assigned to IWASAKI ELECTRIC CO LTD (1)· patent assignee history

2003–2008Based in Wakayama-shi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SUMITOMO CHEMICAL CO	12	1989–2004
SANYO ELECTRIC CO	5	1979–1984
YAMAHA MOTOR CO LTD	5	1988–2003
DAINIPPON PLASTICS	1	1990
IWASAKI ELECTRIC CO LTD	1	1990

Locations

Location	Patents	Span
Chiba, JP	8	1989–1991
Iwata, JP	5	1988–2003
Neyagawa, JP	5	1979–1984
Tokyo, JP	3	1985–1990
Wakayama-shi, JP	2	2003–2008