Kitasouma-gun, Japan

Masafumi Yoshihiro

This inventor holds 24 USPTO granted patents, primarily in Magneto-Optical Recording. Top assignees: Hitachi Maxell, Limited, Hitachi Maxwell, Ltd., Hitachi, Ltd.. Active years: 1994-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masafumi Yoshihiro. Retrieved from https://idiyas.com/inventor/masafumi-yoshihiro

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


% Patents Active = 91.7

Average Co-Inventor Count = 5.7

ph-index = 7

Forward Citations = 179(Granted Patents)


Location History:

  • Yuuki, JP (1994)
  • Yuuki-gun, JP (1996)
  • Kitasoma-gun, JP (2000)
  • Ibaraki-ken, JP (1997 - 2002)
  • Ibaraki, JP (2001 - 2002)
  • Ibararaki, JP (2002)
  • Kitasouma-gun, JP (2000 - 2004)

Company Filing History:


Years Active: 1994-2004

Loading Chart...
Areas of Expertise:
Magneto-Optical Medium
Recording Method
Reproducing Apparatus
Magnetic Field Strength
Auxiliary Magnetic Layer
Optical Recording Device
Magnetic Domain
Recording Apparatus
Laser-Beam-Permeable Member
Self-Lubricating Property
Clock-Marks
Multi-Value Signals
24 patents (USPTO):Explore Patents

Title: Innovations by Masafumi Yoshihiro in Magneto-Optical Recording Technologies

Introduction

Masafumi Yoshihiro, an accomplished inventor based in Kitasouma-gun, Japan, holds an impressive portfolio of 24 patents. His contributions primarily focus on advancements in magneto-optical recording technologies, showcasing his expertise and ingenuity in the field of information storage.

Latest Patents

Among Yoshihiro's latest patents is a groundbreaking reproducing method and apparatus for magneto-optical recording mediums. This technology employs external magnetic fields H(x) or varying intensity patterns of reproducing light beams L(x) at identical recording positions on the medium. The innovation allows for the retrieval of different information pieces corresponding to specific patterns, thus enhancing security by requiring a unique function H(x) or L(x) to access the recorded information. Additionally, the function utilizes modulated intensities to improve the reproduction process, significantly enhancing the signal-to-noise ratio by performing multiple cycles of reproduction. Another notable patent pertains to a method of recording high-density information by using varying magnetic field strengths during the recording of different mark lengths on the recording layer. This method ensures effective information transfer and high-density reproduction, which is crucial in modern data storage solutions.

Career Highlights

Throughout his career, Masafumi Yoshihiro has made significant strides in the technology sector, particularly within companies like Hitachi Maxell, Limited. His innovative approach to magneto-optical technologies has established him as a leading figure in the field, paving the way for advancements that improve the efficiency and security of data storage.

Collaborations

Yoshihiro has collaborated with esteemed professionals in the industry, including Katsusuke Shimazaki and Norio Ohta. These partnerships have contributed to the development of cutting-edge technologies, further solidifying his reputation as a key inventor in the realm of magneto-optical recording.

Conclusion

Masafumi Yoshihiro's work exemplifies the power of innovation in transforming data storage methodologies. With a robust portfolio of patents, his contributions continue to influence the future of magneto-optical technologies, ensuring advancements in both accessibility and security for information storage solutions. His dedication to research and collaboration highlights the importance of teamwork in driving technology forward.

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]
Loading…