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Inventor

Sumiyuki Ishigami

Inventor
Tokyo, JP

Overview

4→
Patents
1978–1991
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 4 as inventor

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

H03Hprimary
H03HImpedance networks, e.g. resonant circuits29%
Y10TTechnical subjects covered by former us classification29%
G01KMeasuring temperature14%
G01PMeasuring linear or angular speed, acceleration, deceleration, or shock14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
PatentTitleYear
4,986,670'Temperature measurement device'19914,550,475'Quartz unit'19854,486,681'Y-Shaped support for piezoelectric resonator'19844,091,679'Vibrating quartz accelerometer'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978Patents assigned to MEISEI ELECTRIC CO LTD (1)· patent assignee history
1978Based in Yokohama, JP· patent location history
1984–1991Patents assigned to TOKYO DENPA KK (3)· patent assignee history
1984Patents assigned to GOTO SEISAKUSKO KK (1)· patent assignee history
1984–1991Based in Tokyo, JP· patent location history
1985Patents assigned to GOTO SEISAKUSHO KK (1)· patent assignee history
1991Patents assigned to AGENCY IND SCIENCE TECHN (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOKYO DENPA KK31984–1991
AGENCY IND SCIENCE TECHN11991
GOTO SEISAKUSHO KK11985
GOTO SEISAKUSKO KK11984
MEISEI ELECTRIC CO LTD11978
Locations
LocationPatentsSpan
Tokyo, JP31984–1991
Yokohama, JP11978