Miyagi, Japan

Kazuhiko Koseki

This inventor holds 1 USPTO granted patent. Top assignees: Ntn Corporation, Tohoku Ricoh Co., Ltd.. Active years: 2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuhiko Koseki. Retrieved from https://idiyas.com/inventor/kazuhiko-koseki

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 = 5.0

ph-index = 1

Forward Citations = 6(Granted Patents)


Company Filing History:


Years Active: 2005

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1 patent (USPTO):Explore Patents

Title: Kazuhiko Koseki: Innovator in Hydrodynamic Bearing Technology

Introduction

Kazuhiko Koseki is a notable inventor based in Miyagi-ken, Japan. He has made significant contributions to the field of engineering, particularly in the development of hydrodynamic bearing units. His innovative approach has led to advancements that enhance the efficiency and reliability of mechanical systems.

Latest Patents

Koseki holds a patent for a hydrodynamic bearing unit. This invention prevents oil leakage by ensuring that the contact between oil and a sealing member within a housing is minimized. The design features a bearing member made of a sintered lubricant-containing metal, which supports a spindle in a non-contact manner through hydrodynamic oil pressure generated during spindle rotation. The housing is sealed with a sealing member, and a ventilation path allows communication between the sealed space and open air. An oil reservoir is strategically formed to maintain optimal lubrication.

Career Highlights

Throughout his career, Kazuhiko Koseki has worked with prominent companies, including NTN Corporation and Tohoku Ricoh Co., Ltd. His experience in these organizations has contributed to his expertise in mechanical engineering and patent development.

Collaborations

Koseki has collaborated with notable colleagues such as Makoto Endo and Noriyuki Kadowaki. Their teamwork has fostered innovation and has led to the successful development of advanced technologies in their field.

Conclusion

Kazuhiko Koseki's contributions to hydrodynamic bearing technology exemplify his innovative spirit and dedication to engineering excellence. His patent and collaborations reflect a commitment to advancing mechanical systems, making him a significant figure in the industry.

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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