Inventor

Ichiro Okamoto

Inventor

Himeji, JP

Overview

1983–2016

Patent span

Chemistry

Primary field (CPC C)

Patents· 47 as inventor

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

C07Cprimary

C07CAcyclic or carbocyclic compounds25%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry16%

B01DSeparation15%

C07BGeneral methods of organic chemistry9%

C08BPolysaccharides8%

H04NPictorial communication, e.g. television5%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds3%

G11BInformation storage based on relative movement between record carrier and transducer3%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%

Y10TTechnical subjects covered by former us classification2%

PatentTitleYear

9,234,881'Sample detection method by thin-layer chromatography, thin-layer chromatography plate, and method for producing same'2016 7,428,008'Video imaging device, video conversion device, and video edition device'2008 RE038435'Separating agent'2004 6,603,363'Oscillator and oscillator adjustment method with stepwise delay'2003 5,805,469'Digital audio signal processing apparatus and method for error concealment'1998 5,604,012'Hollow fiber fabric and process for producing the same'1997 5,539,586'Method and apparatus for recording digital data on a recording medium by recording ODD-numbered and even-numbered data segments and compressed digital data in distinct recording regions'1996 5,493,414'Method of dubbing digital video signals'1996 5,489,387'Separation agent comprising acyl- or carbamoyl-substituted polysaccharide'1996 5,472,599'Separation agent comprising aliphatic or aromatic ester of polysaccharide'1995 5,440,404'Image signal compression apparatus and method using variable length encoding'1995 5,415,769'Separation agent comprising aliphatic or aromatic ester of polysaccharide'1995 5,415,780'Separation agent comprising acyl- or carbamoyl-substituted polysaccharide'1995 5,368,737'Separation agent comprising acyl-or carbamoyl-substituted polysaccharide'1994 5,334,311'Separation agent comprising aliphatic or aromatic ester of polysaccharide'1994 5,315,445'Audio signal recording apparatus and method for use with VTR'1994 5,268,098'Separation agent comprising aliphatic or aromatic ester of polysaccharide'1993 RE034457'Separating agent'1993 5,260,789'Image memory device'1993 5,229,002'Separation agent comprising acyl- or carbamoyl-substituted polysaccharide'1993 5,192,444'Separating with an agent comprising an aliphatic ester of a polysaccharide'1993 5,137,638'Separation agent comprising acyl- or carbamoyl-substituted polysaccharide'1992 5,135,653'Optical resolution with .beta.-1,4-xylan dibenzoate'1992 5,089,138'Separating with an agent comprising an aliphatic ester of a polysaccharide'1992 5,075,009'Separation agent comprising acyl- or carbamoyl-substituted polysaccharide'1991 5,059,328'Separation agent comprising 1,3-glucan'1991 5,041,226'Separating with an agent comprising aliphatic ester of polysaccharide'1991 5,032,277'Optical resolution with .beta.-1,4-mannan tribenzoate'1991 5,017,290'Separation agent comprising acyl- or carbamoyl-substituted polysaccharide'1991 5,002,669'Separation agent comprising 1,3-glucan'1991 4,966,694'Separation agent comprising acyl- or carbamoyl-substituted polysaccharide'1990 4,931,184'Optical resolution with tribenzoyl-b-1,4-chitosan'1990 4,897,198'Separation agent comprising 1,3-glucan'1990 4,892,659'Separation agent comprising aliphatic ester of polysaccharide'1990 4,879,038'Separation agent comprising acyl- or carbamoyl-substituted polysaccharide'1989 4,846,968'Resolving agent'1989 4,830,752'Separation agent comprising 1,3-glucan'1989 4,818,394'Separating agent'1989 4,786,416'Resolving agent'1988 4,786,415'Separation agent comprising aliphatic ester of polysaccharide'1988 4,714,555'Agent for separation'1987 4,672,141'Polyalkylene ether glycols'1987 4,606,567'Door latch operating device'1986 4,599,460'Polyalkylene ether glycol copolymers'1986 4,436,896'Polyester copolymer'1984 4,418,172'Polyester composition containing 2-methyl-1,3-propylene glycol dibenzoate'1983 4,415,727'Modified polyethylene terephthalate molding material'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–2004Patents assigned to DAICEL CHEM (36)· patent assignee history

1983–2004Based in Himeji, JP· patent location history

1993–2008Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (3)· patent assignee history

1993–1995Based in Yokohama, JP· patent location history

1994–2003Patents assigned to SONY CORP (5)· patent assignee history

1994–1996Based in Saitama, JP· patent location history

1996–2003Based in Tokyo, JP· patent location history

2016Patents assigned to DAICEL CORP (1)· patent assignee history

2016Patents assigned to IKEDA ISAMU (1)· patent assignee history

2016Based in Osaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DAICEL CHEM	36	1983–2004
SONY CORP	5	1994–2003
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD	3	1993–2008
DAICEL CORP	1	2016
IKEDA ISAMU	1	2016

Locations

Location	Patents	Span
Himeji, JP	36	1983–2004
Tokyo, JP	3	1996–2003
Saitama, JP	2	1994–1996
Yokohama, JP	2	1993–1995
Osaka, JP	1	2016