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Inventor

Akira Ohsawa

Inventor
Higashimurayama, JP

Overview

11→
Patents
1976–2004
Patent span
Physics
Primary field (CPC G)

Patents· 11 as inventor

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

G06Fprimary
G06FElectric digital data processing26%
H05KPrinted circuits16%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds11%
G06TImage data processing or generation, in general11%
G11CStatic stores11%
A61BDiagnosis5%
B01DSeparation5%
C09DCoating compositions, e.g. paints, varnishes or lacquers5%
D06FLaundering, drying, ironing, pressing or folding textile articles5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
PatentTitleYear
6,814,875'Method and device for treating waste liquid, solvent separator, and cleaning device using thereof'20045,056,045'Geometric processing system'19914,944,034'Geometric processing system'19904,935,900'Dynamic random access memory with a self-refreshing function'19904,905,668'Endoscope apparatus'19904,669,065'Dynamic memory apparatus having a sense amplifier and a reference voltage connection circuit therefor'19874,596,844'Self-hardenable resin composition'19864,364,112'Miniature computer with separate hand-held controller'19824,308,561'Miniature computer'19814,253,143'Miniature computer capable of using a conventional audio cassette tape deck as an auxiliary memory'19813,971,709'Method for forming smooth cured coated films'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1986Patents assigned to NIPPON OILS & FATS CO LTD (2)· patent assignee history
1976–1990Based in Yokohama, JP· patent location history
1981–1991Patents assigned to HITACHI LTD (5)· patent assignee history
1981–1991Based in Higashimurayama, JP· patent location history
1987–1990Patents assigned to MATSUSHITA ELECTRONICS CORP (2)· patent assignee history
1987–1990Based in Kyoto, JP· patent location history
1990Patents assigned to OLYMPUS OPTICAL CO (1)· patent assignee history
2004Patents assigned to YAMAHA CORP (1)· patent assignee history
2004Based in Shizuoka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD51981–1991
MATSUSHITA ELECTRONICS CORP21987–1990
NIPPON OILS & FATS CO LTD21976–1986
OLYMPUS OPTICAL CO11990
YAMAHA CORP12004
Locations
LocationPatentsSpan
Higashimurayama, JP51981–1991
Yokohama, JP31976–1990
Kyoto, JP21987–1990
Shizuoka, JP12004