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For the Inventor, By the Inventor

Iwata, Japan

Michio Iihara

This inventor holds 10 USPTO granted patents. Top assignee: Ntn Corporation. Active years: 1996-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Michio Iihara. Retrieved from https://idiyas.com/inventor/michio-iihara

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

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 5

Forward Citations = 52(Granted Patents)


Location History:

  • Hamamatsu, JP (1996 - 1998)
  • Shizuoka-ken, JP (2002)
  • Iwata, JP (2001 - 2006)

Company Filing History:

goldMedal10 out of 2,495 
 
Ntn Corporation
 patents

Years Active: 1996-2006

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10 patents (USPTO):Explore Patents
1. 7000319 - Method of manufacturing outer races for tripod-type constant velocity universal joints (2006-02-21),
2. 6913540 - Constant velocity universal joint for propeller shaft (2005-07-05),
3. 6422946 - Universal joint outer race and method for manufacturing the same (2002-07-23),
4. 6419767 - Distortion control method and cooling power measuring device (2002-07-16),
5. 6224490 - Constant velocity joint and method of making an outer race therefor (2001-05-01),
6. 5765430 - Method for and apparatus of producing outer member of universal joint (1998-06-16),
7. 5764051 - Cold forged toothed ring for producing rotational speed signals (1998-06-09),
8. 5735745 - Homokinetic universal joint having ball grooves in a cylindrical plane (1998-04-07),
9. 5692590 - Slidable freewheel clutch between axle shaft and wheel (1997-12-02),
10. 5544548 - Cold forming method of toothed ring-shaped products and forming (1996-08-13),

Title: Michio Iihara: Innovator in Constant Velocity Universal Joints

Introduction

Michio Iihara is a prominent inventor based in Iwata, Japan. He has made significant contributions to the field of mechanical engineering, particularly in the design and manufacturing of constant velocity universal joints. With a total of 10 patents to his name, Iihara's work has had a substantial impact on the automotive industry.

Latest Patents

Iihara's latest patents include a method of manufacturing outer races for tripod-type constant velocity universal joints. This innovative method involves creating a peripheral lip region with chamfered portions using a plastic working technique. This approach simplifies the design of the cup forming punch, making it easier to assemble molds and repair worn-down punches. Another notable patent is for a constant velocity universal joint designed for propeller shafts. This joint reduces weight and size while facilitating the assembly of a stub shaft, ultimately improving rotational balance and reducing the number of parts used.

Career Highlights

Iihara is currently associated with NTN Corporation, where he continues to develop cutting-edge technologies in the field of universal joints. His expertise and innovative mindset have positioned him as a key player in the industry, contributing to advancements that enhance performance and efficiency.

Collaborations

Iihara has worked alongside talented colleagues such as Yoshihiro Sagisaka and Yasushi Takahara. Their collaborative efforts have led to the development of groundbreaking technologies that push the boundaries of mechanical engineering.

Conclusion

Michio Iihara's contributions to the field of constant velocity universal joints exemplify his innovative spirit and dedication to engineering excellence. His patents and ongoing work continue to influence the automotive industry, showcasing the importance of innovation in technology.

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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