Hiroshi Sugahara

This inventor holds 9 USPTO granted patents. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Teac Corporation. Active years: 1981-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Sugahara. Retrieved from https://idiyas.com/inventor/hiroshi-sugahara-05w4ypv5

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

Calculating rank

USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 2.8

ph-index = 4

Forward Citations = 35(Granted Patents)

Location History:

Amagasaki, JP (1981 - 1997)
Tokyo, JP (1993 - 2000)

Company Filing History:

6 out of 21,351

Mitsubishi Denki Kabushiki Kaisha

Years Active: 1981-2000

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9 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6088179 - Method and apparatus for recording and reproducing magnetically, using (2000-07-11),

2. 5603814 - Magneto-optical disk (1997-02-18),

3. 5450260 - Space saving support mechanism for an eccentric drive pin in a rotating (1995-09-12),

4. 5283133 - Magneto-optical disk (1994-02-01),

5. 5270290 - Information recording medium and methods of recording and reproducing (1993-12-14),

6. 5263779 - Thrust ball-bearing (1993-11-23),

7. 5197181 - Motor positioning method (1993-03-30),

8. 5143797 - Magneto-optic recording medium (1992-09-01),

9. 4295110 - Adjusting device for color cathode ray tube (1981-10-13),

Title: Hiroshi Sugahara: Innovator in Magnetic Recording Technology

Introduction

Hiroshi Sugahara is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of magnetic recording technology, holding a total of 9 patents. His innovative work has paved the way for advancements in data storage and retrieval methods.

Latest Patents

Among his latest patents, Sugahara has developed a method and apparatus for recording and reproducing magnetically. This invention involves detecting a tunnel current generated by a spin tunnel effect between a conductive magnetic recording film and a conductive magnetic film located on the magnetic head. This technology aims to achieve high recording density and high-frequency reproducing signals. Additionally, he has patented a method for making a magneto-optical disk, which includes forming a dielectric film through reactive sputtering and layering magnetic films to enhance data storage capabilities.

Career Highlights

Throughout his career, Sugahara has worked with notable companies such as Mitsubishi Electric Corporation and Teac Corporation. His experience in these organizations has contributed to his expertise in magnetic recording technologies and innovations.

Collaborations

Sugahara has collaborated with talented individuals in his field, including Kazuhiko Tsutsumi and Takahiro Sakaguchi. These partnerships have fostered a creative environment that has led to groundbreaking advancements in technology.

Conclusion

Hiroshi Sugahara's contributions to magnetic recording technology have established him as a key figure in the field. His innovative patents and collaborations continue to influence advancements in data storage solutions.

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]