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For the Inventor, By the Inventor

Yokosuka, Japan

Seiji Tomita

This inventor holds 20 USPTO granted patents, primarily in Tape Recording Technology. Top assignees: Tokyo Shibaura Denki Kabushiki Kaisha, Kabushiki Kaisha Toshiba, Smc Kabushiki Kaisha. Active years: 1980-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seiji Tomita. Retrieved from https://idiyas.com/inventor/seiji-tomita

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

USPTO Granted Patents = 20

% Patents Active = 95.0

Average Co-Inventor Count = 1.5

ph-index = 5

Forward Citations = 106(Granted Patents)


Location History:

  • Yokohama, JP (1980)
  • Kanagawa, JP (1995)
  • Yokosuka, JP (1982 - 2012)

Company Filing History:

goldMedal11 out of 2,916 
 
Tokyo Shibaura Denki Kabushiki Kaisha
 patents
silverMedal5 out of 53,262 
 
Kabushiki Kaisha Toshiba
 patents
bronzeMedal3 out of 565 
 
Smc Kabushiki Kaisha
 patents
4. 1 out of 7 
 
Tokyo Shibaura Denki Kabushiki
 patents

Years Active: 1980-2012

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Areas of Expertise:
Chuck Apparatus
Automatic Reduction-Ratio Changing
Position Measuring Device
Float-Type Flowmeter
Tape Driving Apparatus
Cassette Loading Device
Magnetic Recording
Tape Player
Head Apparatus
Tape Recorder
Tape Head Apparatus
Tape Cassette Loading
20 patents (USPTO):Explore Patents
1. 8123234 - Chuck apparatus (2012-02-28),
2. 7118507 - Automatic reduction-ratio changing apparatus (2006-10-10),
3. 6889563 - Position measuring device using change in inductance of coil, float-type flowmeter, and position measuring method (2005-05-10),
4. 5478023 - Tape driving apparatus (1995-12-26),
5. 5274523 - Mechanism for a tray type cassette loading device (1993-12-28),
6. 5109309 - Cassette loading device for loading tape cassette having different (1992-04-28),
7. 5105319 - Magnetic recording/reproducing apparatus in which tape cassettes of (1992-04-14),
8. 4669012 - Head apparatus for a cassette tape recorder (1987-05-26),
9. 4669006 - Tape player (1987-05-26),
10. 4646187 - Cassette tape recorder (1987-02-24),
11. 4636895 - Tape head apparatus for a cassette tape recorder (1987-01-13),
12. 4625251 - Tape recorder (1986-11-25),
13. 4593331 - Tape player (1986-06-03),
14. 4587583 - Tape player (1986-05-06),
15. 4542430 - Tape recorder (1985-09-17),

Title: Seiji Tomita - Pioneering Inventor from Yokosuka

Introduction: Seiji Tomita is a renowned inventor hailing from Yokosuka, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Seiji Tomita holds several patents in various technological domains, showcasing his continuous dedication to pushing the boundaries of innovation.

Career Highlights: Throughout his illustrious career, Seiji Tomita has been instrumental in developing cutting-edge technologies that have revolutionized industries and improved the lives of many.

Collaborations: Seiji Tomita has collaborated with leading research institutions, universities, and companies worldwide, fostering a culture of innovation and knowledge sharing.

Conclusion: Seiji Tomita's relentless pursuit of innovation and his passion for creating impactful solutions solidify his legacy as a pioneering inventor in the realm of 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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