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For the Inventor, By the Inventor

Yokohama, Japan

Osamu Kawachi

This inventor holds 55 USPTO granted patents and 1 published patent application, primarily in Acoustic Wave Devices (CPC class H03H). Top assignees: Fujitsu Media Devices Limited, Taiyo Yuden Co., Ltd., Fujitsu Corporation. Active years: 1997-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Osamu Kawachi. Retrieved from https://idiyas.com/inventor/osamu-kawachi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 55 

% Patents Active = 80.0

Average Co-Inventor Count = 2.9

ph-index = 10

Forward Citations = 379(Granted Patents)

Forward Citations (Not Self Cited) = 366(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kawasaki, JP (1997 - 2002)
  • Suzaka, JP (2002)
  • Nagano, JP (2002 - 2004)
  • Yokohama, JP (2006 - 2015)
  • Kanagawa, JP (2005 - 2017)
  • Tokyo, JP (2016 - 2023)

Company Filing History:

goldMedal26 out of 158 
 
Fujitsu Media Devices Limited
 patents
silverMedal19 out of 1,769 
 
Taiyo Yuden Co., Ltd.
 patents
bronzeMedal14 out of 39,371 
 
Fujitsu Corporation
 patents
4. 1 out of 1 
 
Fujitsu Media Devices Limted
 patent
where one patent can have more than one assignee

Years Active: 1997-2023

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Areas of Expertise:
Acoustic Wave Resonator
Acoustic Wave Filter
Multiplexer
Electronic Device
Surface Acoustic Wave
Fabrication Method
Composite Electronic Component
Balance Filter
Wireless Device
Downsized Package
Elastic Wave Apparatus
Filter Circuit
55 patents (USPTO):Explore Patents
1. 11595019 - Acoustic wave resonator, filter, and multiplexer (2023-02-28),
2. 10826461 - Acoustic wave device (2020-11-03),
3. 10491191 - Acoustic wave device and method of fabricating the same (2019-11-26),
4. 10263757 - Filter circuit and module (2019-04-16),
5. 10250231 - Acoustic wave device (2019-04-02),
6. 10187035 - Acoustic wave device (2019-01-22),
7. 9985606 - Acoustic wave filter, duplexer, and module (2018-05-29),
8. 9825612 - Multiplexer (2017-11-21),
9. 9751109 - Acoustic wave device and method of fabricating the same (2017-09-05),
10. 9667221 - Acoustic wave device (2017-05-30),
11. 9633873 - Electronic device (2017-04-25),
12. 9306538 - Composite electronic component (2016-04-05),
13. 9294068 - Filter circuit and module (2016-03-22),
14. 9214445 - Electronic component and method of fabricating the same (2015-12-15),
15. RE45419 - Surface acoustic wave device and method of fabricating the same (2015-03-16),

Title: The Innovative Mind of Osamu Kawachi

Introduction: Osamu Kawachi is a renowned inventor hailing from Yokohama, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Osamu Kawachi holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous dedication to pushing the boundaries of what is possible.

Career Highlights: With a career spanning over two decades, Osamu Kawachi has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant advancements in various industries.

Collaborations: Throughout his career, Osamu Kawachi has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge sharing.

Conclusion: Osamu Kawachi's passion for innovation and his relentless pursuit of excellence have solidified his reputation as a visionary inventor in the global tech community.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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