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For the Inventor, By the Inventor

Handa, Japan

Masami Niimi

This inventor holds 112 USPTO granted patents and 2 published patent applications and 22 EPO patents, primarily in Electromagnetic Switching (CPC class 290 38R). Top assignees: Denso Corporation, Nippondenso Co., Ltd., Tris Inc.. Active years: 1995-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masami Niimi. Retrieved from https://idiyas.com/inventor/masami-niimi

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

USPTO Granted Patents = 112 

% Patents Active = 65.2

 

Average Co-Inventor Count = 2.4

ph-index = 14

Forward Citations = 821(Granted Patents)

Forward Citations (Not Self Cited) = 725(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kariya, JP (1997)
  • Handa, JP (1995 - 2015)

Company Filing History:

goldMedal79 out of 20,407 
 
Denso Corporation
 patents
silverMedal30 out of 3,252 
 
Nippondenso Co., Ltd.
 patents
bronzeMedal3 out of 13 
 
Tris Inc.
 patents
4. 1 out of 5 
 
Nippondenso Corporation
 patents
5. 2 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1995-2015

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Areas of Expertise:
Electromagnetic Switch
Engine Starter
Solenoid Apparatus
Idle-Stop System
Noise Reduction
DC Rotary Electric Machine
Starter Solenoid
Resistor Arrangement
Pinion-Rotation Mechanism
Automatic Engine Stop
Brush Technology
Starting Device
112 patents (USPTO):Explore Patents
1. 9171681 - Electromagnetic switch (2015-10-27),
2. 9003901 - Starter for engine (2015-04-14),
3. 8847713 - Starter-use electromagnetic switch (2014-09-30),
4. 8779876 - Electromagnetic switch (2014-07-15),
5. 8754556 - Apparatus for starting engine mounted on-vehicle (2014-06-17),
6. 8610296 - Starter adapted to absorb engine-oscillation (2013-12-17),
7. 8601888 - Starter with compact structure (2013-12-10),
8. 8570123 - Electromagnetic switch (2013-10-29),
9. 8534145 - Engine starting apparatus (2013-09-17),
10. 8531258 - Electromagnetic switch (2013-09-10),
11. 8476777 - Starter mounted on vehicle having idle-stop apparatus (2013-07-02),
12. 8451079 - Electromagnetic solenoid (2013-05-28),
13. 8446239 - Electromagnetic switch (2013-05-21),
14. 8426989 - Starter for vehicles equipped with automatic engine stop/re-starting device (2013-04-23),
15. 8421562 - Starting device for engines (2013-04-16),

Title: Masami Niimi: A Trailblazer in Innovation

Introduction:

Masami Niimi, a brilliant inventor hailing from Handa, Japan, has left an indelible mark on the world of technology through his passion for innovation and relentless pursuit of excellence. With an impressive portfolio of 112 patents, Niimi-san continues to inspire the next generation of inventors with his groundbreaking work.

Latest Patents:

One of Niimi's latest patents is the Electromagnetic Switch, a revolutionary device that features a unique design aimed at enhancing efficiency and performance. This switch includes a coil, a frame, a resin cover, and a current-supply terminal member, all working seamlessly to provide a reliable electromagnetic solution.

Another remarkable invention by Niimi is the Starter for Engine, a cutting-edge starter that comprises a motor, speed reducer, pinion, partition wall, pinion driving solenoid, and motor energizing switch. This starter showcases Niimi's ingenuity in developing innovative solutions for automotive applications.

Career Highlights:

Throughout his illustrious career, Masami Niimi has made significant contributions to the field of technology through his work with renowned companies such as Denso Corporation and Nippondenso Co., Ltd. His tenure at these esteemed organizations has been marked by a commitment to excellence and a drive to push the boundaries of innovation.

Collaborations:

Niimi-san has had the privilege of collaborating with exceptional individuals in his field, including Tsutomu Shiga and Mitsuhiro Murata. Together, they have worked tirelessly to bring forth cutting-edge solutions and pave the way for future advancements in technology.

Conclusion:

In conclusion, Masami Niimi stands as a beacon of innovation, inspiring inventors worldwide to dream big and pursue their passion for technological advancement. His relentless pursuit of excellence and dedication to pushing the boundaries of what is possible continue to shape the future of technology and leave an enduring legacy in the world of inventions.

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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