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Inventor

Shigeru Kogure

Inventor
Suwa, JP

Overview

10→
Patents
1980–1995
Patent span
Electricity
Primary field (CPC H)

Patents· 10 as inventor

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

H03Hprimary
H03HImpedance networks, e.g. resonant circuits43%
G11BInformation storage based on relative movement between record carrier and transducer29%
Y10TTechnical subjects covered by former us classification14%
G04FTime-interval measuring7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
PatentTitleYear
5,436,876'Optical head and optical memory device'19954,801,499'Optical recording medium'19894,779,250'Magneto-optical signal read-out system using divided photodetector'19884,750,152'Optical read/write device'19884,453,105'Mode coupled quartz crystal tuning fork'19844,410,827'Mode coupled notched tuning fork type quartz crystal resonator'19834,377,765'Mode coupled tuning fork type quartz crystal vibrator and method of tuning'19834,356,425'Electrode for tuning fork type quartz crystal vibrator'19824,320,320'Coupled mode tuning fork type quartz crystal vibrator'19824,191,906'Tuning fork type quartz crystal resonator with notched tines'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1984Patents assigned to SUWA SEIKOSHA KK (6)· patent assignee history
1980–1995Based in Suwa, JP· patent location history
1988–1995Patents assigned to SEIKO EPSON CORP (4)· patent assignee history
1989Based in Nagano, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SUWA SEIKOSHA KK61980–1984
SEIKO EPSON CORP41988–1995
Locations
LocationPatentsSpan
Suwa, JP91980–1995
Nagano, JP11989