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Inventor

Hisao Wakabayashi

Inventor
Tokorozawa, JP

Overview

11→
Patents
1976–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 11 as inventor

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

H03Hprimary
H03HImpedance networks, e.g. resonant circuits47%
G04FTime-interval measuring12%
B23KSoldering or unsoldering6%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein6%
G04GElectronic time-pieces6%
G11BInformation storage based on relative movement between record carrier and transducer6%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy6%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution6%
Y02PClimate change mitigation technologies in the production or processing of goods6%
PatentTitleYear
11,011,806Cylindrical battery20216,703,768'Piezoelectric generator and mounting structure therefor'20046,396,201'Piezoelectric vibrator'20026,194,816'Piezoelectric vibrator'20015,982,077'Piezo-electric transducer unit'19995,585,687'Piezolelectric oscillator'19964,750,063'Floppy disk drive having a pivotally supporting cartridge carrier'19884,234,811'Supporting structure for a thickness-shear type crystal oscillator for watches'19804,183,629'Electronic optical display device and method of manufacturing the same'19804,079,281'Shape, AT-cut crystal oscillator'19783,988,621'Supporting structure for a thickness-shear type quartz oscillator'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–2004Patents assigned to CITIZEN WATCH CO LTD (9)· patent assignee history
1976–1980Based in Higashikurume, JP· patent location history
1988Based in Saitama, JP· patent location history
1996–2002Patents assigned to MIYOTA KK (4)· patent assignee history
1996Patents assigned to SHIMEO SEIMITSU KK (1)· patent assignee history
1996–2004Based in Tokorozawa, JP· patent location history
1999Based in Tokyo, JP· patent location history
2002Patents assigned to CITIZENSWATCH CO LTD (1)· patent assignee history
2021Patents assigned to SANYO ELECTRIC CO (1)· patent assignee history
2021Based in Tokushima, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CITIZEN WATCH CO LTD91976–2004
MIYOTA KK41996–2002
CITIZENSWATCH CO LTD12002
SANYO ELECTRIC CO12021
SHIMEO SEIMITSU KK11996
Locations
LocationPatentsSpan
Tokorozawa, JP41996–2004
Higashikurume, JP41976–1980
Tokushima, JP12021
Tokyo, JP11999
Saitama, JP11988