Inventor

Masao Okabe

Inventor

Abiko, JP

Overview

1976–2000

Patent span

Chemistry

Primary field (CPC C)

Patents· 20 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 ingredients25%

C08LCompositions of macromolecular compounds25%

G11BInformation storage based on relative movement between record carrier and transducer13%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds6%

B01DSeparation3%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%

B07BSeparating solids from solids by sieving, screening, sifting or by using gas currents3%

C01BNon-metallic elements3%

G01BMeasuring length, thickness or similar linear dimensions3%

PatentTitleYear

6,118,930'Apparatus for recording digital signals by controlling frequency characteristics of digital signals utilizing bit extraction and interleaved NRZI modulation'2000 5,892,982'External expansion bus interface circuit for connecting a micro control unit, and a digital recording and reproducing apparatus incorporating said interface circuit'1999 5,825,567'Apparatus for recording digital signals by controlling frequency characteristics of digital signals utilizing bit extraction and interleaved NRZI molulation'1998 5,579,182'Apparatus for recording digital signals superposed with controlled frequency components'1996 5,028,656'Resin composition, and molded articles therefrom'1991 5,026,764'Resin composition based on modified polyphenylene ether and polyphenylene sulfide, and molded articles therefrom'1991 4,686,131'Silylated polyphenylene ether membrane for gas separation'1987 4,683,255'Polyphenylene ether resin composition having excellent fire retardancy'1987 4,663,376'Polyphenylene ether resin composition'1987 4,614,773'Novel polyphenylene ether resin composition'1986 4,532,306'Polyphenylene ether resin composition'1985 4,489,186'Polyphenylene ether resin composition'1984 4,472,546'Polyphenylene ether resin composition'1984 4,427,814'Polyphenylene ether resin composition having improved heat stability'1984 4,392,744'Method of and apparatus for determining angular and transversal displacements of shield machine and succeeding pipe'1983 4,383,066'Polyphenylene ether resin composition'1983 4,341,879'Polyphenylene ether resin composition having improved heat stability and impact strength'1982 3,954,904'Stabilized polyphenylene ether resin composition'1976 3,952,072'Stabilized polyphenylene ether type resin composition'1976 3,933,941'Thermoplastic blended composition comprising polyphenylene ether, aromatic polycarbonate and styrene resin'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1991Patents assigned to MITSUBISHI GAS CHEMICAL CO (15)· patent assignee history

1976–1987Based in Tokyo, JP· patent location history

1982–1991Based in Abiko, JP· patent location history

1983Patents assigned to OKUMURA CORP (1)· patent assignee history

1987Based in Chiba, JP· patent location history

1996–2000Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (4)· patent assignee history

1996–2000Based in Hannan, JP· patent location history

1999Based in Osaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITSUBISHI GAS CHEMICAL CO	15	1976–1991
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD	4	1996–2000
OKUMURA CORP	1	1983

Locations

Location	Patents	Span
Abiko, JP	10	1982–1991
Tokyo, JP	4	1976–1987
Hannan, JP	3	1996–2000
Osaka, JP	1	1999
Chiba, JP	1	1987