Inventor
Izumi Yamamoto
Inventor
Saitama, JP
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Cprimary
G01CMeasuring distances, levels or bearings22%
H03HImpedance networks, e.g. resonant circuits17%
B22DCasting of metals9%
C22CAlloys9%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys9%
H02NElectric machines not otherwise provided for9%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h109%
Y10TTechnical subjects covered by former us classification9%
F02FCylinders, pistons or casings, for combustion engines4%
G04CElectromechanical clocks or watches4%
PatentTitleYear
11,101,748Method of manufacturing an electrostatic induction transducer, electrostatic induction transducer, and wristwatch202110,920,301Aluminum alloy casting having superior high-temperature strength and thermal conductivity, method for manufacturing same, and aluminum alloy casting piston for internal combustion engine202110,622,917Electrostatic-type electromechanical transducer20209,222,151'Aluminum alloy excellent in high temperature strength and heat conductivity and method of production of same'20158,558,435'Package structure of a piezoelectric device mounting and supporting a piezoelectric vibration element'20137,986,077'Tuning fork type quartz piece and oscillator comprising such tuning fork type quartz piece'20117,901,587'Manufacturing method for vibrator'20117,673,511'Vibration gyro'20107,637,159'Vibration gyro and the process of producing the same'20096,675,651'Vibration gyro'20046,538,208'Package base for mounting electronic element, electronic device and method of producing the same'20036,437,490'Vibration gyroscope'20026,281,619'Vibration gyro'2001Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2001–2021Patents assigned to CITIZEN WATCH CO LTD (6)· patent assignee history
2001–2020Based in Saitama, JP· patent location history
2003–2011Based in Sayama, JP· patent location history
2009–2013Patents assigned to CITIZEN HOLDINGS CO LTD (5)· patent assignee history
2010Based in Nishitokyo, JP· patent location history
2013–2015Patents assigned to YAMAMOTO IZUMI (2)· patent assignee history
2013Patents assigned to ARAI ISAO (1)· patent assignee history
2015–2021Patents assigned to NIPPON LIGHT METAL CO (2)· patent assignee history
2015–2021Based in Shizuoka, JP· patent location history
2021Based in Sayama-shi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CITIZEN WATCH CO LTD | 6 | 2001–2021 |
| CITIZEN HOLDINGS CO LTD | 5 | 2009–2013 |
| NIPPON LIGHT METAL CO | 2 | 2015–2021 |
| YAMAMOTO IZUMIself | 2 | 2013–2015 |
| ARAI ISAO | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Saitama, JP | 4 | 2001–2020 |
| Sayama, JP | 4 | 2003–2011 |
| Shizuoka, JP | 2 | 2015–2021 |
| Sayama-shi, JP | 1 | 2021 |
| Nishitokyo, JP | 1 | 2010 |