Koji Ohashi

This inventor holds 64 USPTO granted patents and 6 published patent applications and 9 EPO patents, primarily in Ultrasonic Devices (CPC class H01L). Top assignee: Seiko Epson Corporation. Active years: 2006-2026.

USPTO Granted Patents = 64 (Patent Applications = 6)

% Patents Active = 81.3

EPO Patents = 9 (Patent Applications = 4)

Average Co-Inventor Count = 2.4

ph-index = 6

Forward Citations = 99(Granted Patents)

Forward Citations (Not Self Cited) = 91(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Suwa, JP (2009)
Chino, JP (2006 - 2012)
Nagano, JP (2007 - 2015)
Shiojiri, JP (2017 - 2018)
Matsumoto, JP (2013 - 2024)

Company Filing History:

64 out of 34,195

Seiko Epson Corporation

patents

Years Active: 2006-2026

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Areas of Expertise:

Ultrasonic Device

Piezoelectric Element

Ultrasonic Probe

Liquid Ejection

Ultrasonic Sensor

Electronic Apparatus

Droplet Ejecting

Actuator

Vibration Device

MEMs Device

Manufacturing Method

Mounting Structure

64 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12709094 - LIQUID EJECTING APPARATUS (2026-08-18),

2. 12661890 - Droplet ejection head and printer (2026-06-23),

3. 12433167 - Piezoelectric element, droplet dispensing head, actuator, and vibrator (2025-09-30),

4. 12311664 - Piezoelectric element, head chip, liquid ejection device, and sensor (2025-05-27),

5. 12239025 - Mounting structure, ultrasonic device, ultrasonic probe, ultrasonic apparatus, and electronic apparatus (2025-02-25),

6. 12156475 - Piezoelectric device having plurality of vibrating regions and electronic apparatus (2024-11-26),

7. 11998390 - Piezoelectric actuator, ultrasound element, ultrasound probe, ultrasound device, and electronic device (2024-06-04),

8. 11917922 - Mounting structure, ultrasonic device, ultrasonic probe, ultrasonic apparatus, and electronic apparatus (2024-02-27),

9. 11872592 - Ultrasonic device and ultrasonic apparatus (2024-01-16),

10. 11858000 - Ultrasonic device and ultrasonic sensor (2024-01-02),

11. 11800809 - Piezoelectric element, piezoelectric actuator, ultrasonic probe, ultrasonic apparatus, electronic apparatus, liquid jet head, and liquid jet apparatus (2023-10-24),

12. 11690594 - Piezoelectric actuator, ultrasonic element, ultrasonic probe, ultrasonic device, and electronic device (2023-07-04),

13. 11594671 - Ultrasonic device and ultrasonic sensor (2023-02-28),

14. 11594670 - MEMs device and electronic device (2023-02-28),

15. 11581478 - Mounting structure, ultrasonic device, ultrasonic probe, ultrasonic apparatus, and electronic apparatus (2023-02-14),

Title: Inventor Koji Ohashi

Introduction: Koji Ohashi is a renowned inventor based in Matsumoto, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Koji Ohashi holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his innovative mindset and forward-thinking approach.

Career Highlights: With a career spanning over two decades, Koji Ohashi has worked with leading research institutions and tech companies to develop cutting-edge solutions that have revolutionized industries worldwide.

Collaborations: Throughout his career, Koji Ohashi has collaborated with top engineers, scientists, and designers, fostering a culture of creativity and excellence in all his projects.

Conclusion: In conclusion, Koji Ohashi's passion for innovation and his relentless pursuit of technological advancement continue to inspire the next generation of inventors and shape the future of technology.