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Epson Toyocom Corporation

USPTO Granted Patents = 100

EPO Patents = 3

Forward Citations = 498

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111 inventors (with patents filed for the assignee):

Masayuki Oto (8 out of 16 patents)

Akitoshi Hara (5 out of 14 patents)

Hisao Motoyama (5 out of 10 patents)

4. Atsushi Kiyohara (4 out of 11 patents)

5. Takuya Owaki (4 out of 18 patents)

6. Kenji Sato (4 out of 16 patents)

7. Jun Watanabe (4 out of 17 patents)

8. Katsuo Ishikawa (4 out of 8 patents)

9. Takao Morita (4 out of 5 patents)

10. Hideo Tanaya (4 out of 28 patents)

11. Yukihiro Tonegawa (4 out of 4 patents)

12. Kazuhiko Shimodaira (3 out of 19 patents)

13. Takehiro Yamamoto (3 out of 33 patents)

14. Yugo Koyama (3 out of 14 patents)

15. Hideto Naruse (3 out of 5 patents)

Core Competencies:

Physical Quantity Detection

Piezoelectric Device

Quartz Crystal Resonator

Pressure Sensor

Surface Acoustic Wave Device

Optical Pickup Device

Atomic Oscillator

Flexural Resonator

Inertial Sensor

Voltage Controlled Oscillator

Gyro Sensor Module

Tuning Fork Resonator

100 patents: Sort by Forward Citations

1. 8375790 - Physical quantity detection apparatus, method of controlling physical quantity detection apparatus, abnormality diagnosis system, and abnormality diagnosis method (2013-02-19),

2. 8362854 - Flexural vibration piece and oscillator using the same (2013-01-29),

3. 8080921 - Reduced-height piezoelectric device having a piezoelectric resonator and electronic component (2011-12-20),

4. 8031401 - Laminated half-wave plate, polarizing converter, polarized light illumination device and light pickup device (2011-10-04),

5. 8026652 - Quartz crystal resonator element, quartz crystal device, and method for producing quartz crystal resonator element (2011-09-27),

6. 8018127 - Flexural resonator element and flexural resonator for reducing energy loss due to heat dissipation (2011-09-13),

7. 8018122 - Surface acoustic wave device, module device, oscillation circuit, and method for manufacturing surface acoustic wave device (2011-09-13),

8. 8015881 - Pressure sensor (2011-09-13),

9. 8011252 - Pressure sensor (2011-09-06),

10. 8000208 - Laminated wave plate and optical pickup device using the same (2011-08-16),

11. 7999626 - Physical section of atomic oscillator (2011-08-16),

12. 7995276 - Laminated half-wave plate, polarizing converter, polarized light illumination device and light pickup device (2011-08-09),

13. 7990616 - IR-UV cut multilayer filter with dust repellent property (2011-08-02),

14. 7990027 - Piezoelectric device and method for manufacturing piezoelectric device (2011-08-02),

15. 7986608 - Laminated wave plate and optical pickup device using the same (2011-07-26),

Epson Toyocom Corporation is a subsidiary of Seiko Epson Corporation, which specializes in the development and manufacturing of sensing devices. They provide a wide range of high-quality sensing products, including quartz crystal devices, gyroscopic sensors, and optical sensors, used in various industries such as automotive, healthcare, and industrial applications.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

100 Patents

#473 in Tokyo

#1,097 in Japan

#7,548 in the World

Epson Toyocom Corporation

Forward Citations = 498

111 inventors:

Masayuki Oto (8 out of 16 patents)

Akitoshi Hara (5 out of 14 patents)

Hisao Motoyama (5 out of 10 patents)

4. Atsushi Kiyohara (4 out of 11 patents)

5. Takuya Owaki (4 out of 18 patents)

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