Nagano, Japan

Masamichi Hayakawa

This inventor holds 15 USPTO granted patents. Top assignees: Sankyo Seiki Mfg. Co., Ltd, Kabushiki Kaisha Sankyo Seiki Seisakusho, Taiho Industries Co., Ltd.. Active years: 1997-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masamichi Hayakawa. Retrieved from https://idiyas.com/inventor/masamichi-hayakawa

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


% Patents Active = 100.0

Average Co-Inventor Count = 2.9

ph-index = 7

Forward Citations = 184(Granted Patents)


Location History:

  • Shimosuwa-machi, JP (1997 - 2000)
  • Nagano, JP (1997 - 2001)
  • Simosuwa-machi, JP (2002)

Company Filing History:


Years Active: 1997-2002

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15 patents (USPTO):Explore Patents

Title: Masamichi Hayakawa: Innovator in Dynamic Pressure Bearings

Introduction

Masamichi Hayakawa is a prominent inventor based in Nagano, Japan. He has made significant contributions to the field of engineering, particularly in the development of dynamic pressure bearing technologies. With a total of 15 patents to his name, Hayakawa's work has had a substantial impact on various industries.

Latest Patents

One of Hayakawa's latest patents is a dynamic pressure bearing apparatus. This innovative device comprises a rotary shaft and a sintered oil retaining bearing that rotatably supports the shaft. The design features an internal surface configuration that generates dynamic pressure, forming a dynamic pressure bearing between the rotary shaft and the bearing. The apparatus includes a minimum-gap section, a large-gap section, and a separation groove section, each playing a crucial role in enhancing lubrication and pressure management. Another notable patent is a fluid sealing device designed for use with motors that rotate disc drives. This device includes a bearing fluid reservoir, a sealing plate, and a bearing fluid absorbing pad, all working together to ensure effective sealing and fluid management.

Career Highlights

Throughout his career, Masamichi Hayakawa has worked with notable companies such as Sankyo Seiki Mfg. Co., Ltd and Kabushiki Kaisha Sankyo Seiki Seisakusho. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in his field.

Collaborations

Hayakawa has collaborated with talented individuals, including Masato Gomyo and Hideki Kanebako. These partnerships have fostered a creative environment that has led to the development of advanced technologies and solutions.

Conclusion

Masamichi Hayakawa's contributions to dynamic pressure bearing technology and fluid sealing devices highlight his innovative spirit and dedication to engineering excellence. His patents and collaborations continue to influence the industry, showcasing the importance of creativity and teamwork in technological advancement.

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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