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For the Inventor, By the Inventor

Hachioji, Japan

Nobuhide Matsubayashi

This inventor holds 13 USPTO granted patents. Top assignees: Olympus Optical Company, Ltd., Other. Active years: 1986-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuhide Matsubayashi. Retrieved from https://idiyas.com/inventor/nobuhide-matsubayashi

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

USPTO Granted Patents = 13

% Patents Active = 100.0

Average Co-Inventor Count = 2.2

ph-index = 8

Forward Citations = 139(Granted Patents)


Location History:

  • Tokyo, JP (1986)
  • Hachioji, JP (1987 - 2001)

Company Filing History:

goldMedal12 out of 5,729 
 
Olympus Optical Company, Ltd.
 patents
silverMedal1 out of 834,513 
Other
 patents

Years Active: 1986-2001

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13 patents (USPTO):Explore Patents
1. 6169714 - Apparatus and method for recording/reproducing magneto-optical information (2001-01-02),
2. 5598389 - Signal detector for an optical information reproducing apparatus (1997-01-28),
3. 5515353 - Optical head with forward and return light beam propagating along a (1996-05-07),
4. 5404490 - Photomagnetic signal detecting device (1995-04-04),
5. 5249171 - Opto-magnetic pick-up device including phase difference correcting means (1993-09-28),
6. 5132953 - Multi-beam optical recording/reproducing apparatus for (1992-07-21),
7. 5124868 - Magneto-optic player with improved C/N ratio (1992-06-23),
8. 5099470 - Apparatus for reproducing information from opto-magnetic record medium (1992-03-24),
9. 4721850 - Optical pickup device having a detector for detecting the light emitting (1988-01-26),
10. 4682311 - Photomagnetic differential reproducing system (1987-07-21),
11. D288558 - Optical pickup for use in optical discs (1987-03-03),
12. 4631712 - Optical disk apparatus with beam energy correction for deviations in (1986-12-23),
13. 4607359 - Optical recording/reproducing apparatus (1986-08-19),

Title: Nobuhide Matsubayashi: Innovator in Magneto-Optical Technology

Introduction

Nobuhide Matsubayashi is a prominent inventor based in Hachioji, Japan. He has made significant contributions to the field of magneto-optical technology, holding a total of 13 patents. His work has advanced the methods of recording and reproducing optical information, showcasing his expertise and innovative spirit.

Latest Patents

Matsubayashi's latest patents include an apparatus and method for recording and reproducing magneto-optical information. This innovative apparatus utilizes a magneto-optical information recording medium that consists of a first magnetic film with perpendicular magnetic anisotropy and a second magnetic film. The information recorded on the first magnetic film is transferred to the second film through laser beam irradiation. The apparatus features a 2-split detection circuit that receives the readout laser beam reflected from the second magnetic film, along with a subtraction circuit that generates a differential signal. Additionally, it includes a circuit for making the laser beam jump one track before reading out the information, ensuring precise tracking control during the readout process.

Another notable patent is a signal detector for an optical information reproducing apparatus. This invention involves writing data modulated in a 4/11 mode onto a sample servo type optical disk using a magnetic head and laser diode. The signal reproducer comprises a differentiating circuit, an A/D converter, and a difference detector that reproduces data through difference detection on the results of A/D conversion.

Career Highlights

Throughout his career, Matsubayashi has worked with notable companies, including Olympus Optical Company, Ltd. His experience in these organizations has contributed to his development as an inventor and innovator in the field of optical technology.

Collaborations

Matsubayashi has collaborated with esteemed colleagues such as Kiichi Kato and Masaharu Sakamoto. Their combined expertise has likely fostered advancements in their respective fields.

Conclusion

Nobuhide Matsubayashi's contributions to magneto-optical technology and his impressive portfolio of patents highlight his role as a leading inventor. His innovative approaches continue to influence the industry and pave the way for future advancements.

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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