Inventor

Masao Hasegawa

Inventor

Sakai, JP

Overview

17→

Patents

1976–2021

Patent span

Chemistry

Primary field (CPC C)

Patents· 17 as inventor

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

G02Fprimary

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein19%

C08LCompositions of macromolecular compounds11%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

A61BDiagnosis4%

B29BPreparation or pretreatment of the material to be shaped4%

B29CShaping or joining of plastics4%

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. inserts4%

B82YSpecific uses or applications of nanostructures4%

C07CAcyclic or carbocyclic compounds4%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds4%

PatentTitleYear

10,989,954Liquid crystal display device2021 10,983,396Method for producing liquid crystal panel, and liquid crystal panel2021 10,962,839Liquid crystal display panel and method for producing liquid crystal display panel2021 10,948,778Liquid crystal display panel and liquid crystal display device2021 10,890,805Liquid crystal display device2021 6,608,562'Vital signal detecting apparatus'2003 6,379,986'Method of forming tunnel oxide film for superconducting X-ray sensor element'2002 6,281,854'Antenna for portable radio device'2001 6,257,053'Scanning probe microscope having piezoelectric member for controlling movement of probe'2001 6,081,248'Color display device'2000 5,530,061'Process for producing impact-resistant polyacetal resin composition'1996 5,326,846'Process for producing impact-resistant polyacetal resin composition'1994 5,292,824'Process for producing a polyacetal resin composition'1994 5,122,793'Signal generator for generating an image signal of an input signal'1992 4,503,733'Creep phenomenon preventive device for automatic transmission gear type automobile'1985 4,011,274'1,1-Diphenyl ethane process'1977 3,968,093'Process for producing partially hydrolyzed polyacrylamide in the presence of alkali metal hydroxide and boric acid'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1977Based in Tokyo, JP· patent location history

1977Patents assigned to ASAHI DOW LTD (1)· patent assignee history

1992–2021Based in Osaka, JP· patent location history

1994–1996Patents assigned to MITSUBISHI GAS CHEMICAL CO (3)· patent assignee history

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

2001–2003Patents assigned to DENSO CORP (2)· patent assignee history

2001–2002Patents assigned to SEIKO INSTR INC (2)· patent assignee history

2001–2002Based in Chiba, JP· patent location history

2021Patents assigned to SHARP KK (5)· patent assignee history

2021Based in Sakai, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SHARP KK	5	2021
MITSUBISHI GAS CHEMICAL CO	3	1994–1996
DENSO CORP	2	2001–2003
SEIKO INSTR INC	2	2001–2002
ASAHI DOW LTD	1	1977

Locations

Location	Patents	Span
Sakai, JP	4	2021
Hiratsuka, JP	3	1994–1996
Osaka, JP	2	1992–2021
Chiba, JP	2	2001–2002
Tokyo, JP	2	1976–1977