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For the Inventor, By the Inventor

Kakogawa, Japan

Daishinku Corporation


USPTO Granted Patents = 101


Trademarks = 10

Forward Citations = 259

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68 inventors (with patents filed for the assignee):

goldMedal Takuya Kojo (26 out of 26 patents)

silverMedal Minoru Iizuka (13 out of 13 patents)

bronzeMedal Naoki Kohda (12 out of 12 patents)

4.  Satoru Ishino (11 out of 11 patents)

5.  Syunsuke Satoh (11 out of 12 patents)

6.  Hiroki Yoshioka (9 out of 9 patents)

7.  Yoshinobu Sakamoto (8 out of 8 patents)

8.  Yoshinari Morimoto (7 out of 7 patents)

9.  Tomo Fujii (7 out of 8 patents)

10.  Hiroaki Yamashita (5 out of 6 patents)

11.  Tatsuya Murakami (5 out of 5 patents)

12.  Manabu Ohnishi (5 out of 5 patents)

13.  Tadataka Koga (4 out of 4 patents)

14.  Kentaro Nakanishi (4 out of 4 patents)

15.  Takashi Shirai (4 out of 4 patents)


Core Competencies:
Crystal Vibration Device
Piezoelectric Resonator Plate
Oven-Controlled Crystal Oscillator
Piezoelectric Vibrating Device
Tuning Fork-Type Vibrator
Frequency Adjustment Method
Surface Mounted Piezoelectric Vibrator
Electronic Component Package

101 patents:

1. 12316301 - Piezoelectric resonator plate and piezoelectric resonator device (2025-05-27),
2. 12316299 - Crystal vibration device (2025-05-27),
3. 12283919 - Oven-controlled crystal oscillator (2025-04-21),
4. 12249956 - Oven-controlled crystal oscillator (2025-03-11),
5. 12249955 - Oven-controlled crystal oscillator (2025-03-11),
6. 12149225 - Piezoelectric vibrating device (2024-11-19),
7. 12126321 - Piezoelectric vibrating device (2024-10-22),
8. 12107543 - Oven-controlled crystal oscillator (2024-10-01),
9. 12028042 - Piezoelectric resonator device having a through hole and through electrode for conduction with an external electrode terminal (2024-07-02),
10. 11929709 - Oven-controlled crystal oscillator (2024-03-12),
11. 11824512 - Piezoelectric resonator device (2023-11-21),
12. 11824509 - Tuning fork-type vibrating reed, tuning fork-type vibrator and manufacturing method therefor (2023-11-21),
13. 11637544 - Piezoelectric resonator device and system-in-package module including the same (2023-04-25),
14. 11621696 - Tuning fork-type vibrator and manufacturing method for the same (2023-04-04),
15. 11563413 - Tuning fork-type vibrating reed, tuning fork-type vibrator and manufacturing method therefor (2023-01-24),
Daishinku Corporation is a leading manufacturer of quartz crystal devices, including crystal units, crystal oscillators, and high-performance OCXOs. With over 70 years of experience, Daishinku delivers high-quality products for various industries, including telecommunications, automotive, and consumer electronics. They are known for their innovative technologies and commitment to customer satisfaction.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

101 Patents

#1 in Kakogawa

#1,092 in Japan

#7,494 in the World

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Kakogawa, Japan

Daishinku Corporation

Forward Citations = 259

68 inventors:

goldMedal Takuya Kojo (26 out of 26 patents)

silverMedal Minoru Iizuka (13 out of 13 patents)

bronzeMedal Naoki Kohda (12 out of 12 patents)

4.  Satoru Ishino (11 out of 11 patents)

5.  Syunsuke Satoh (11 out of 12 patents)

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