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For the Inventor, By the Inventor

Tokyo, Japan

Masashi Usami

This inventor holds 18 USPTO granted patents and 3 published patent applications, plus 1 CIPO patent, primarily in Semiconductor Devices. Top assignees: Kokusai Denshin Denwa Kabushiki Kaisha, Terumo Kabushiki Kaisha, Kdd Corporation. Active years: 1988-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masashi Usami. Retrieved from https://idiyas.com/inventor/masashi-usami

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

USPTO Granted Patents = 18 

% Patents Active = 88.9


Average Co-Inventor Count = 2.6

ph-index = 7

Forward Citations = 193(Granted Patents)


Location History:

  • Tanashi, JP (1994)
  • Yono, JP (1998 - 1999)
  • Tokyo, JP (1988 - 2023)

Company Filing History:

goldMedal9 out of 339 
 
Kokusai Denshin Denwa Kabushiki Kaisha
 patents
silverMedal7 out of 2,427 
 
Terumo Kabushiki Kaisha
 patents
bronzeMedal1 out of 41 
 
Kdd Corporation
 patents
4. 1 out of 4,358 
 
Yamaha Hatsudoki Kabushiki Kaisha
 patents

Years Active: 1988-2026

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Areas of Expertise:
Hemostatic Band
Aspiration Device
Vascular Puncture
Catheter Handle
Inflation Valve
Optical Processing
Quantum Well Structure
Distributed Feedback Laser
Strained-Layer Superlattice
Semiconductor Device
Short Pulse Reshaping
Current Injection
18 patents (USPTO):Explore Patents
1. D1137666 - Hemostatic band (2026-07-28),
2. 12653556 - Aspiration device, aspiration system, and aspiration method (2026-06-16),
3. 12521088 - Support table and vascular puncture device (2026-01-13),
4. D1070079 - Catheter handle (2025-04-08),
5. D1067427 - Catheter handle (2025-03-18),
6. D1049372 - Inflation valve of hemostasis device (2024-10-29),
7. D1004084 - Hemostasis device (2023-11-07),
8. D884562 - Motorcycle (2020-05-19),
9. 6091536 - Optical processing device (2000-07-18),
10. 5912911 - Optical short pulse reshaping device (1999-06-15),
11. 5805327 - Reshaping device for optical short pulses (1998-09-08),
12. 5392306 - Multiple quantum well structure and semiconductor device using the same (1995-02-21),
13. 5306924 - Semiconductor device with strained-layer superlattice (1994-04-26),
14. 5122844 - Quantum well structure and semiconductor device using the same (1992-06-16),
15. 4932034 - Distributed feedback semiconductor laser device and current injection (1990-06-05),

Title: The Innovative Journey of Masashi Usami

Introduction

Masashi Usami is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of medical devices, particularly with his innovative designs and patents. With a total of 15 patents to his name, Usami has established himself as a key figure in the industry.

Latest Patents

Among his latest inventions is a catheter handle, which showcases his commitment to improving medical technology. This invention is designed to enhance the usability and effectiveness of catheter procedures, reflecting his dedication to patient care and medical advancements.

Career Highlights

Usami has worked with notable companies such as Kokusai Denshin Denwa Co., Ltd. and Terumo Corporation. His experience in these organizations has allowed him to develop and refine his skills as an inventor, contributing to various projects that have had a lasting impact on the medical field.

Collaborations

Throughout his career, Usami has collaborated with talented individuals, including Yuichi Matsushima and Shigeyuki Akiba. These partnerships have fostered a creative environment that has led to the development of innovative solutions in medical technology.

Conclusion

Masashi Usami's journey as an inventor is marked by his dedication to innovation and collaboration. His contributions to the medical device industry continue to influence advancements in patient care and technology.

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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