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For the Inventor, By the Inventor

Yamanashi, Japan

Kazumitsu Ishikawa

This inventor holds 11 USPTO granted patents and 5 EPO patents. Top assignee: Kito Corporation. Active years: 2011-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazumitsu Ishikawa. Retrieved from https://idiyas.com/inventor/kazumitsu-ishikawa

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 = 100.0

 

Average Co-Inventor Count = 2.6

ph-index = 3

Forward Citations = 46(Granted Patents)


Location History:

  • Nakakoma-gun, JP (2016)
  • Yamanashi, JP (2011 - 2018)

Company Filing History:

goldMedal11 out of 77 
 
Kito Corporation
 patents

Years Active: 2011-2018

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11 patents (USPTO):Explore Patents
1. 10053342 - Chain block (2018-08-21),
2. 9802799 - Chain block (2017-10-31),
3. 9284172 - Manual chain block (2016-03-15),
4. 8997964 - Load sensitive magnetic clutch device (2015-04-07),
5. D704415 - Chain hoist (2014-05-06),
6. D704414 - Chain hoist (2014-05-06),
7. D704413 - Chain hoist (2014-05-06),
8. D704412 - Chain hoist (2014-05-06),
9. D704411 - Chain hoist (2014-05-06),
10. D667380 - Switch for hoist (2012-09-18),
11. 7907045 - Hoisting machine (2011-03-15),

Title: Kazumitsu Ishikawa: Innovator in Chain Block Technology

Introduction

Kazumitsu Ishikawa is a prominent inventor based in Yamanashi, Japan. He has made significant contributions to the field of mechanical engineering, particularly in the design and functionality of chain blocks. With a total of 11 patents to his name, Ishikawa continues to push the boundaries of innovation in his industry.

Latest Patents

Ishikawa's latest patents include advancements in chain block technology. One notable invention is a chain block designed to achieve a reduction in size while maintaining strength. This innovative design features a load-sheave hollow shaft that rotates to feed a load chain, along with a drive shaft inserted into the hollow core. The reduction gear member is equipped with a first reduction gear part that meshes with a separate gear part. Additionally, an accommodating recess is provided at one end of the hollow core, ensuring optimal functionality.

Another significant patent focuses on improving wheel cover strength without increasing costs. This chain block includes a wheel cover attached to a frame member, which covers a hand-chain wheel. The design incorporates multiple fixation holes for secure attachment, along with wrap-around portions that enhance the structural integrity of the wheel cover.

Career Highlights

Kazumitsu Ishikawa is currently associated with Kito Corporation, a leading company in the manufacturing of lifting equipment. His work has been instrumental in developing innovative solutions that enhance the performance and reliability of chain blocks.

Collaborations

Ishikawa has collaborated with talented coworkers such as Hiroki Sano and Kosuke Kosuga. Their combined expertise has contributed to the successful development of various innovative products within the company.

Conclusion

Kazumitsu Ishikawa's contributions to chain block technology exemplify his commitment to innovation and excellence. His patents reflect a deep understanding of mechanical engineering and a dedication to improving industry standards. Through his work at Kito Corporation, Ishikawa continues to inspire future advancements 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]
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