Saitama, Japan

Keiichi Ishikawa

This inventor holds 2 USPTO granted patents. Top assignee: Other. Active years: 1988-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiichi Ishikawa. Retrieved from https://idiyas.com/inventor/keiichi-ishikawa-r0necop1

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


% Patents Active = 100.0

Average Co-Inventor Count = 4.4

ph-index = 2

Forward Citations = 5(Granted Patents)


Location History:

  • Totsuka-ku, Yokohama-shi, Kanagawa-ken, JP (1988)
  • Chuo, Wako-shi, Saitama-ken, JP (1990)

Company Filing History:

goldMedal2 out of 834,570 
Other
 patents

Years Active: 1988-1990

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2 patents (USPTO):Explore Patents

Title: **Innovations of Inventor Keiichi Ishikawa**

Introduction

Keiichi Ishikawa, an accomplished inventor hailing from Saitama-ken, Japan, has made significant contributions to the field of engineering through his innovative inventions. With a total of two patents to his name, his work particularly focuses on advanced frictional mechanisms and screen printing technologies.

Latest Patents

Ishikawa's latest patents encompass inventive solutions that enhance both performance and efficiency. The first patent is for a **wet friction member and wet frictional engagement apparatus**. This invention features a unique configuration with an input side member, an output side member, and a wet friction member strategically attached. The design includes an opposite member that faces the friction member, providing a means for applying pressure to ensure effective engagement. Notably, the wet friction member consists of a substrate housing first and second friction submembers that vary in oil permeability, enabling distinct coefficients of friction based on the direction of relative motion.

His second patent presents a greatly improved **mesh and printing screen for screen printing**. This innovative design enhances durability during printing as well as resistance against solvents and possesses superior antistatic performance owing to a mesh of polyester or nylon filaments. The manufacturing process includes treating the base mesh with low-temperature plasma, enhancing its properties before it is coated with a photosensitive resin composition. The addition of surface-active agents further improves antistatic capabilities, while the use of a yellow-dyed base screen significantly reduces halation effects during lighting exposure.

Career Highlights

Throughout his career, Keiichi Ishikawa has demonstrated a consistent drive for innovation. His patents reflect a deep understanding of mechanical engineering and material science. By focusing on technologies that improve performance and reliability, Ishikawa has positioned himself as a respected figure in the realm of inventions.

Collaborations

Ishikawa has collaborated with talented individuals in the field, including coworkers Tadashi Tsuchiyama and Yasuyuki Suzuki. These collaborations have likely spurred creative solutions and propelled their respective projects forward, resulting in advanced technologies that have broad applications.

Conclusion

Keiichi Ishikawa’s inventive contributions through his patents represent a meaningful stride in engineering innovations. His work on wet friction engagement mechanisms and improved screen printing technologies highlight the importance of continuous exploration in material utilization and product efficiency. As he continues to develop new ideas, Ishikawa remains a significant player in the landscape of innovation.

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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