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For the Inventor, By the Inventor

Tokyo, Japan

Katsuhiko Igarashi

This inventor holds 11 USPTO granted patents and 1 EPO patent. Top assignees: Tdk Corporation, Tdk Corpoartion. Active years: 2000-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsuhiko Igarashi. Retrieved from https://idiyas.com/inventor/katsuhiko-igarashi

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

USPTO Granted Patents = 11

% Patents Active = 54.5

 

Average Co-Inventor Count = 2.5

ph-index = 4

Forward Citations = 96(Granted Patents)


Location History:

  • Chiba, JP (2000)
  • Chuo-ku, JP (2007 - 2009)
  • Tokyo, JP (2009 - 2017)

Company Filing History:

goldMedal10 out of 8,257 
 
Tdk Corporation
 patents
silverMedal1 out of 6 
 
Tdk Corpoartion
 patents

Years Active: 2000-2017

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11 patents (USPTO):Explore Patents
1. 9620156 - Magnetic head device (2017-04-11),
2. 9514772 - Magnetic head device having suspension and spacer (2016-12-06),
3. 8233019 - Thermal head (2012-07-31),
4. 8044761 - Varistor (2011-10-25),
5. 7749592 - Multilayer ceramic substrate (2010-07-06),
6. 7544314 - Glass composition for thick film resistor paste, thick film resistor paste, thick-film resistor, and electronic device (2009-06-09),
7. 7481953 - Thick-film resistor paste and thick-film resistor (2009-01-27),
8. 7282163 - Resistor paste, resistor, and electronic device (2007-10-16),
9. 6124769 - Electronic device, and its fabrication method (2000-09-26),
10. 6120884 - Conductor paste and multilayer ceramic part using the same (2000-09-19),
11. 6110569 - Conductive paste and non-reciprocal device using the same (2000-08-29),

Title: Innovations of Katsuhiko Igarashi

Introduction

Katsuhiko Igarashi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of magnetic head devices, holding a total of 11 patents. His work has been instrumental in advancing technology in this area.

Latest Patents

Igarashi's latest patents include a magnetic head device designed to provide high joint strength in an arm and a suspension. This device comprises an arm, a suspension overlapping with the leading end part of the arm, a slider located at the leading end part of the suspension, and a joint part that connects the arm and the suspension, which includes Sn. Another notable patent is a magnetic head device that ensures strong joint strength and high accuracy in size and shape. This device also consists of an arm, a suspension, and a first joint part that includes Sn or a resin adhesive.

Career Highlights

Throughout his career, Katsuhiko Igarashi has worked with TDK Corporation, a leading company in the electronics industry. His innovative work has contributed to the development of advanced magnetic head technologies.

Collaborations

Igarashi has collaborated with notable colleagues such as Hirobumi Tanaka and Takashi Kawashima, further enhancing the impact of his inventions.

Conclusion

Katsuhiko Igarashi's contributions to the field of magnetic head devices demonstrate his expertise and innovative spirit. His patents reflect a commitment to advancing technology and improving device performance.

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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