logo

For the Inventor, By the Inventor

Kyoto, Japan

Takashi Mitsunari

This inventor holds 5 USPTO granted patents and 5 published patent applications. Top assignee: Nidec Corporation. Active years: 2025-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Mitsunari. Retrieved from https://idiyas.com/inventor/takashi-mitsunari-tlkc3ul8

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

USPTO Granted Patents = 5 

% Patents Active = 80.0

Average Co-Inventor Count = 4.6

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:

goldMedal5 out of 1,525 
 
Nidec Corporation
 patents

Years Active: 2025-2026

Loading Chart...
5 patents (USPTO):Explore Patents
1. 12700431 - Base plate, motor, and disk drive device (2026-08-04),
2. 12525256 - Disk driving device for preventing pivot post from dropping from base plate (2026-01-13),
3. 12512123 - Base plate, spindle motor, disk drive device, and base plate manufacturing method (2025-12-30),
4. 12361976 - Base plate with metal member embedded in the peripheral wall part, motor, and disk driving device having the same (2025-07-15),
5. 12322413 - Base plate and disk drive device (2025-06-03),

Title: Takashi Mitsunari: Innovator in Disk Drive Technology

Introduction

Takashi Mitsunari is a prominent inventor based in Kyoto, Japan. He has made significant contributions to the field of disk drive technology, holding a total of 5 patents. His innovative designs have enhanced the functionality and reliability of disk driving devices.

Latest Patents

Mitsunari's latest patents include a disk driving device designed to prevent the pivot post from dropping from the base plate. This device features a disk that rotates around a rotation shaft, driven by a motor. The arm swings about a swinging shaft, with a head at the tip for reading or writing information. The housing of the device accommodates all components, including a cast base plate with a bottom wall and an open top. A separate pivot post protrudes from the bottom wall, and a tubular portion houses the pivot post, allowing the arm to be attached via a bearing. A screw inserted through the cover secures the pivot post's top end, ensuring stability during operation.

Another notable patent involves the base plate manufacturing method for a disk drive device. This base plate, made from a metal die-cast member, serves as a crucial part of the housing. It includes a bottom wall portion and a cylindrical wall portion that extends upward, featuring a shaft through hole for the insertion of a shaft. The design incorporates an annular stepped portion that enhances the structural integrity of the device.

Career Highlights

Mitsunari is currently employed at Nidec Corporation, a leading company in the field of precision motors and related technologies. His work at Nidec has allowed him to focus on advancing disk drive technology, contributing to the company's reputation for innovation and quality.

Collaborations

Throughout his career, Mitsunari has collaborated with talented individuals such as Michihiro Ito and Kenta Miyoshi. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies in the disk drive sector.

Conclusion

Takashi Mitsunari's contributions to disk drive technology exemplify his innovative spirit and dedication to advancing engineering solutions. His patents reflect a commitment to improving device functionality and reliability, making him a notable figure in the field.

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…