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For the Inventor, By the Inventor

Tochigi, Japan

Nobuyuki Kishine

This inventor holds 8 USPTO granted patents. Top assignee: Kao Corporation. Active years: 1987-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuyuki Kishine. Retrieved from https://idiyas.com/inventor/nobuyuki-kishine

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

USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 3.7

ph-index = 5

Forward Citations = 40(Granted Patents)


Location History:

  • Utsunomiya, JP (1987 - 1989)
  • Ichikai, JP (1992)
  • Tochigi, JP (1987 - 1994)

Company Filing History:

goldMedal8 out of 3,673 
 
Kao Corporation
 patents

Years Active: 1987-1994

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8 patents (USPTO):Explore Patents
1. 5282106 - Magnetic disk cartridge (1994-01-25),
2. 5146381 - Magnetic disk jacket (1992-09-08),
3. 4811152 - Protective structure for jacket for rotatable magnetic recording media (1989-03-07),
4. 4774140 - Glass-like carbon material, method for manufacturing the same, and (1988-09-27),
5. 4716078 - Substrate for a magnetic disc and method manufacturing same (1987-12-29),
6. 4661402 - Magnetic recording medium (1987-04-28),
7. 4644431 - Magnetic head for a perpendicular magnetic recording system (1987-02-17),
8. 4642720 - Magnetic head comprised of an improved base substance for high density (1987-02-10),

Title: Nobuyuki Kishine: Innovator in Magnetic Disk Technology

Introduction

Nobuyuki Kishine is a prominent inventor based in Tochigi, Japan. He has made significant contributions to the field of magnetic disk technology, holding a total of 8 patents. His innovative designs have enhanced the functionality and efficiency of magnetic disk cartridges and jackets.

Latest Patents

Kishine's latest patents include a magnetic disk cartridge and a magnetic disk jacket. The magnetic disk cartridge retains a rotational magnetic disk in a case through liners, which contact the associated surfaces of the disk. These liners have multiple long protrusions formed almost uniformly and in parallel to one another on the whole surface on the disk side. As the magnetic disk rotates, the angle of the disk surface contacting the long protrusions can gradually change, ensuring the removal of dust from the disk. Additionally, this structure reduces the frictional resistance between the liner's surface and the magnetic disk, contributing to faster rotation of the disk. The magnetic disk jacket includes a liner partly welded to the inner surface of a case and is adapted to clean the surface of a magnetic disk. The liner contains 0.001 to 0.05g of a polydimethylsiloxane derivative, which has a viscosity of 50 to 3000 cSt at 25°C and includes a polyether group or both a polyether group and an epoxy group in a molecule per 1g of the liner.

Career Highlights

Kishine is currently employed at Kao Corporation, where he continues to innovate in the field of magnetic disk technology. His work has been instrumental in advancing the efficiency and reliability of magnetic storage solutions.

Collaborations

Throughout his career, Kishine has collaborated with notable coworkers, including Tetsuya Imamura and Michihide Yamauchi. Their combined expertise has contributed to the successful development of various technologies in their field.

Conclusion

Nobuyuki Kishine's contributions to magnetic disk technology have made a significant impact on the industry. His innovative patents and collaborations highlight his dedication to advancing technology in this area.

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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