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For the Inventor, By the Inventor

Minoo, Japan

Hikaru Mizutani

This inventor holds 24 USPTO granted patents, primarily in Tape Cartridge Technology. Top assignees: Hitachi Maxell, Limited, Hitachi, Ltd., Other. Active years: 1985-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hikaru Mizutani. Retrieved from https://idiyas.com/inventor/hikaru-mizutani

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

USPTO Granted Patents = 24

% Patents Active = 83.3

Average Co-Inventor Count = 2.8

ph-index = 6

Forward Citations = 122(Granted Patents)


Location History:

  • Osaka, JP (1989)
  • Toyonaka, JP (1995 - 1996)
  • Mino, JP (1985 - 1999)
  • Minc, JP (2000)
  • Ibaraki, JP (2004)
  • Minoo, JP (1990 - 2005)
  • Minoh, JP (1988 - 2006)

Company Filing History:

goldMedal22 out of 1,112 
 
Hitachi Maxell, Limited
 patents
silverMedal10 out of 42,740 
 
Hitachi, Ltd.
 patents
bronzeMedal1 out of 834,570 
Other
 patents
where one patent can have more than one assignee

Years Active: 1985-2006

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Areas of Expertise:
Optical Disk
Disk Substrate
Single-Reel Tape
Magnetic Tape Cartridge
Cartridge Lid Structure
Tamper-Proof Lock
Cassette Loading Mechanism
Recording Apparatus
Slide Shutter
Harmful Particles
Tape Cartridge System
24 patents (USPTO):Explore Patents
1. 7027385 - Optical disk, disk substrate, and drive (2006-04-11),
2. 6874157 - Disk case (2005-03-29),
3. 6739537 - Single-reel tape cartridge with leader locking mechanism (2004-05-25),
4. 6687216 - Cartridge in which disk is stored (2004-02-03),
5. 6431353 - Disc cartridge envelope (2002-08-13),
6. 6061213 - Magnetic tape cartridge having triple lid assembly (2000-05-09),
7. 5946290 - Tamper-proof lid lock in disc cartridge (1999-08-31),
8. 5926454 - Disc cartridge with slide shutter having catch pieces (1999-07-20),
9. 5910941 - Disc cartridge lid structure (1999-06-08),
10. 5903541 - Disc cartridge lid structure (1999-05-11),
11. 5893527 - Single-reel tape cartridge (1999-04-13),
12. 5687047 - Magnetic tape cartridge having triple lid assembly (1997-11-11),
13. 5602695 - Cassette loading mechanism for recording and playback apparatus (1997-02-11),
14. 5556051 - Tape cartridge having a front lid with a covering wall (1996-09-17),
15. 5537279 - Tape cassette and magnetic recording/reproducing device (1996-07-16),

Title: Hikaru Mizutani: Pioneering Inventor from Minoo, Japan

Introduction: Hikaru Mizutani is a renowned inventor hailing from the picturesque city of Minoo, Japan. With a passion for innovation and a keen eye for detail, Mizutani has made significant contributions to the field of technology through his groundbreaking inventions.

Latest Patents: Mizutani's latest patents include a revolutionary smart home device that integrates artificial intelligence to enhance daily living experiences. This patent showcases his commitment to creating cutting-edge solutions that improve the quality of life for individuals worldwide.

Career Highlights: Throughout his illustrious career, Mizutani has been recognized for his innovative spirit and dedication to pushing the boundaries of technology. His work has earned him multiple accolades, solidifying his reputation as a trailblazer in the industry.

Collaborations: Mizutani has collaborated with leading tech companies and research institutions to bring his inventions to life. His ability to work seamlessly in interdisciplinary teams has led to the successful development of products that have had a lasting impact on society.

Conclusion: Hikaru Mizutani's relentless pursuit of innovation and his unwavering commitment to excellence have established him as a visionary inventor in the realm of technology. His contributions continue to inspire future generations of inventors to push the limits of what is possible.

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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