LexDanaLexDanabeta
Inventor

Toshio Akatsu

Inventor
Ushiku, JP

Overview

11→
Patents
1981–1999
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.

G01Bprimary
G01BMeasuring length, thickness or similar linear dimensions19%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure19%
G01DMeasuring not specially adapted for a specific variable14%
B23KSoldering or unsoldering10%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling10%
B25JManipulators5%
G01KMeasuring temperature5%
G05BControl or regulating systems in general5%
G08CTransmission systems for measured values, control or similar signals5%
G11BInformation storage based on relative movement between record carrier and transducer5%
PatentTitleYear
5,929,989'Optical pressure detection method and apparatus'19995,675,415'Physical quantity measurement apparatus and instrument therefor'19975,392,173'Method and apparatus for controlling a small spacing between a magnetic head and a magnetic recording medium'19954,984,891'Laser gauge interferometer and locating method using the same'19914,728,194'Method of and apparatus for optically measuring displacement'19884,724,301'Apparatus utilizing light stripe image for detecting portion to be welded prior to welding thereof'19884,708,481'Method of and apparatus for optically measuring displacement'19874,667,997'Grip device'19874,667,082'Welding position detecting apparatus'19874,632,556'Method and apparatus for optically measuring clearance change'19864,248,095'Method of and system for measuring physical quantities of a rotating body at many points thereof'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1999Patents assigned to HITACHI LTD (11)· patent assignee history
1981Based in Ushikumachi, JP· patent location history
1986–1988Based in Ibaraki, JP· patent location history
1988–1999Based in Ushiku, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD111981–1999
Locations
LocationPatentsSpan
Ushiku, JP51988–1999
Ibaraki, JP51986–1988
Ushikumachi, JP11981