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For the Inventor, By the Inventor

Ibaraki, Japan

Yoshitane Tsuburaya

This inventor holds 11 USPTO granted patents. Top assignees: Hitachi Maxell, Limited, Hitachi Maxwell, Ltd., Nintendo Co., Ltd.. Active years: 1992-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshitane Tsuburaya. Retrieved from https://idiyas.com/inventor/yoshitane-tsuburaya

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

USPTO Granted Patents = 11

% Patents Active = 81.8

Average Co-Inventor Count = 3.5

ph-index = 4

Forward Citations = 63(Granted Patents)


Location History:

  • Torite, JP (1993)
  • Toride, JP (1992 - 1996)
  • Ibrakai, JP (2002)
  • Ibaraki, JP (1996 - 2003)
  • Kitasouma-gun, JP (2004)

Company Filing History:

goldMedal9 out of 1,112 
 
Hitachi Maxell, Limited
 patents
silverMedal2 out of 56 
 
Hitachi Maxwell, Ltd.
 patents
bronzeMedal1 out of 2,813 
 
Nintendo Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1992-2004

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11 patents (USPTO):Explore Patents
1. 6690624 - Magnetic lens, magnetic reproducing element, reproducing apparatus and reproducing method (2004-02-10),
2. 6671233 - Magneto-optical recording medium and reproduction method therefor (2003-12-30),
3. 6501729 - Cartridge for information-recording media having deformable elastic pressing member urged by projection on shutter (2002-12-31),
4. 6438073 - Magnetic lens, magnetic reproducing element, reproducing apparatus and reproducing method (2002-08-20),
5. 6339583 - Cartridge for information-recording media having deformable elastic member on shutter (2002-01-15),
6. 6122228 - Magneto-optical recording medium and reproduction method therefor (2000-09-19),
7. 5537389 - Disk cartridge having a single closing energizer for closing two (1996-07-16),
8. 5495467 - Disc cartridge having an opening/closing slider mechanism (1996-02-27),
9. 5273598 - Optical disc manufacturing method (1993-12-28),
10. 5199988 - Manufacturing apparatus and method for recording medium (1993-04-06),
11. 5166844 - Disc drive apparatus having a mechanism for opening/closing the shutter (1992-11-24),

Title: Yoshitane Tsuburaya: Innovator in Magnetic Technology

Introduction

Yoshitane Tsuburaya is a prominent inventor based in Ibaraki, Japan. He has made significant contributions to the field of magnetic technology, holding a total of 11 patents. His innovative work has advanced the understanding and application of magneto-optical recording mediums.

Latest Patents

Tsuburaya's latest patents include groundbreaking inventions such as a magnetic lens, a magnetic reproducing element, and a reproducing apparatus and method. The magnetic lens features a reproducing layer and a magnetic slit, which allows for the inversion of magnetization in response to the leak magnetic field of a recording magnetic domain. This transition enhances the signal intensity of the reproduced magnetization information through the magneto-optical effect. Additionally, his work on magneto-optical recording mediums involves a complex arrangement of layers that facilitate high-sensitivity detection of minute magnetic domains, ensuring reliable reproduction of amplified signals.

Career Highlights

Throughout his career, Tsuburaya has worked with notable companies such as Hitachi Maxell, Limited and Hitachi Maxwell, Ltd. His experience in these organizations has contributed to his expertise in magnetic technologies and innovations.

Collaborations

Tsuburaya has collaborated with esteemed colleagues, including Katsusuke Shimazaki and Hitoshi Watanabe. These partnerships have fostered a creative environment that has led to significant advancements in their respective fields.

Conclusion

Yoshitane Tsuburaya's contributions to magnetic technology through his patents and collaborations highlight his role as a leading inventor in this domain. His innovative spirit continues to inspire advancements in magneto-optical recording technologies.

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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