Inventor
Hitoshi Ikeno
Inventor
Tokyo, JP
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H03Hprimary
H03HImpedance networks, e.g. resonant circuits42%
Y10TTechnical subjects covered by former us classification17%
B24BMachines, devices, or processes for grinding or polishing8%
G04FTime-interval measuring8%
G04GElectronic time-pieces8%
H03BGeneration of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner8%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h108%
PatentTitleYear
4,709,218'Overtone crystal oscillator'19874,420,652'Hermetically sealed package'19834,370,584'Electrode configuration for thickness-shear mode piezoelectric vibrator'19834,262,227'Thickness-shear piezo-electric vibrator with additional mass for mode suppression'19814,211,947'Thickness-shear mode quartz oscillator with an added non-circular mass'19804,183,126'Process for preparing quartz oscillator'19804,173,848'Polishing device'19794,050,126'Method for adjusting frequency-temperature characteristic of GT cut quartz oscillator'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1987Patents assigned to SEIKOSHA KK (8)· patent assignee history
1977–1980Based in Koganei, JP· patent location history
1979–1987Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SEIKOSHA KK | 8 | 1977–1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 6 | 1979–1987 |
| Koganei, JP | 2 | 1977–1980 |