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For the Inventor, By the Inventor

Tsukuba-gun, Japan

Bunya Hayashi

USPTO Granted Patents = 74

Average Co-Inventor Count = 2.3

ph-index = 19

Forward Citations = 1,159(Granted Patents)

Forward Citations (Not Self Cited) = 1,037(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Yawara, JP (1995 - 1997)
  • Yawara-mura, JP (1996 - 2000)
  • Ibaraki, JP (1998 - 2007)
  • Tsukuba-gun, JP (1997 - 2008)
  • Tsukubamirai, JP (2008 - 2011)
  • Tsukuba, JP (1995 - 2016)

Company Filing History:

goldMedal74 out of 1,461 
 
Smc Corporation
 patents

Years Active: 1995-2016

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Areas of Expertise:
Electromagnetic Valves
Solenoid Valves
Directional Control Valves
Fluid Control Devices
Manifold Valves
Pressure Control Valves
Pilot Operated Valves
Switching Valves
Fluid Pressure Apparatus
Valve Devices
Position Detecting Mechanisms
Interlock Valves
74 patents (USPTO):Explore Patents
1. 9523442 - Double solenoid valve with detent mechanism (2016-12-20),
2. D639393 - Electromagnetic valve (2011-06-07),
3. D636460 - Electromagnetic valve (2011-04-19),
4. 7438088 - Electromagnetic pilot type directional control valve (2008-10-21),
5. 7434780 - Pilot-type two-port valve (2008-10-14),
6. 7357373 - Pilot-type two-port valve (2008-04-15),
7. 7207351 - Switching valve with position detecting mechanism (2007-04-24),
8. D539386 - Fluid control valve (2007-03-27),
9. D524910 - Electromagnetic valve (2006-07-11),
10. 7073825 - One-operation piping-installation fluid pressure apparatus (2006-07-11),
11. 7048002 - Board-mounted manifold valve (2006-05-23),
12. 7032879 - Valve device having a plurality of solenoids (2006-04-25),
13. 6874537 - Manifold valve (2005-04-05),
14. 6830067 - Manifold valve (2004-12-14),
15. 6766828 - Interlock valve (2004-07-27),

Title: Bunya Hayashi: Innovator in Electromagnetic Valve Technology

Introduction

Bunya Hayashi is a prolific inventor based in Tsukuba-gun, Japan, known for his significant contributions to the field of electromagnetic valves. With an impressive portfolio of 74 patents, he has solidified his reputation as a leading innovator within the industry.

Latest Patents

Among his latest inventions is the "Double Solenoid Valve with Detent Mechanism." This innovative design features a detent mechanism that enhances the holding force for a valve member with two switch positions. Key elements of this invention include a ring-shaped housing groove, an annular elevated portion, and a ring-shaped detent member made of elastic material. The design optimally utilizes the housing groove’s right and left side walls and incorporates a locking section for maintaining position stability.

Career Highlights

Currently, Bunya Hayashi is employed at SMC Corporation, a leading company in pneumatic control systems. Throughout his career, he has focused on creating advanced solutions in valve technology, making substantial impacts on various engineering applications. His work not only reflects innovation but also a commitment to enhancing functionality in engineering products.

Collaborations

In his journey, Bunya has collaborated with esteemed colleagues such as Makoto Ishikawa and Masaru Narita. Their collective efforts have contributed to the success of numerous projects and patents, fostering an environment of creativity and technical excellence within their company.

Conclusion

Bunya Hayashi continues to be an influential figure in the field of electromagnetism and valve technology. His latest inventions and collaborations underscore the importance of innovation in engineering, proving that dedication to research and development can yield remarkable advancements. Through his work, Bunya not only drives progress within SMC Corporation but also inspires future generations of inventors.

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