Tokyo, Japan

Keisuke Ishii

This inventor holds 28 USPTO granted patents and 4 published patent applications and 2 EPO patents, primarily in Ceramic Electronics. Top assignees: Sony Corporation, Fuji Jukogyo Kabushiki Kaisha, Kioritz Corporation. Active years: 1988-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keisuke Ishii. Retrieved from https://idiyas.com/inventor/keisuke-ishii

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

USPTO Granted Patents = 28 

% Patents Active = 85.7

 

Average Co-Inventor Count = 3.2

ph-index = 8

Forward Citations = 184(Granted Patents)


Location History:

  • Saitama, JP (2009 - 2019)
  • Chiba, JP (2018 - 2020)
  • Tokyo, JP (1988 - 2023)

Company Filing History:


Years Active: 1988-2025

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Areas of Expertise:
Multilayer Ceramic Capacitor
Ceramic Electronic Device
Anti-CDH3 Antibody
Drug Conjugate
In-Vehicle Communication
Camera
Navigation System
Strapping Machine
Internal Combustion Engine
Oil Pump Device
Mowing Apparatus
Lens Barrel
28 patents (USPTO):Explore Patents

Title: Keisuke Ishii: A Pioneer in Ceramic Electronic Devices

Introduction

Keisuke Ishii, based in Tokyo, Japan, is a renowned inventor recognized for his contributions to the field of ceramic electronic devices. With a remarkable portfolio of 27 patents, Ishii has made significant advancements in the manufacturing methods and designs of ceramic components, setting new standards within the electronics industry.

Latest Patents

Ishii's latest patents reflect his expertise and innovative spirit. One notable patent describes a "Ceramic Electronic Device and Manufacturing Method of the Same." This invention involves a multilayer structure characterized by a substantially rectangular parallelepiped shape, featuring a first and a second cover layer. The second cover layer, primarily made of ceramic, possesses a porosity higher than that of the first cover layer, enabling enhanced performance and functionality.

Another significant patent, the "Ceramic Electronic Component and Method of Manufacturing the Same," details a multilayer chip composed of ceramic dielectric layers and internal electrode layers that are alternately stacked. The design includes cover layers with distinct porosity sections, which improves the overall efficiency of the ceramic electronic component and broadens its applications.

Career Highlights

Throughout his career, Keisuke Ishii has held key positions at prominent companies, including Sony Corporation and Kioritz Corporation. His experience in these industry leaders has equipped him with the skills and knowledge necessary to innovate within the realm of ceramic electronics.

Collaborations

Ishii has collaborated with talented professionals such as Akira Nagashima and Katsushi Kouda. Their collective expertise has played a pivotal role in furthering advancements in ceramic technology and exploring new dimensions of electronic components.

Conclusion

In summary, Keisuke Ishii stands out as a significant figure in the innovation of ceramic electronic devices. His impressive patent portfolio and collaboration with esteemed colleagues highlight his commitment to pushing the boundaries of technology. As the electronics industry continues to evolve, Ishii’s contributions will undoubtedly influence 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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