Hokkaido, Japan

Kazuhiro Ishikawa

This inventor holds 6 USPTO granted patents and 2 EPO patents. Top assignees: National University Corporation Kitami Institute of Technology, The Japan Steel Works, Ltd., Kiyoshi Aoki. Active years: 2008-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuhiro Ishikawa. Retrieved from https://idiyas.com/inventor/kazuhiro-ishikawa-gk30qeqv

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

Calculating rank

% Patents Active = 16.7


Average Co-Inventor Count = 3.7

ph-index = 1

Forward Citations = 5(Granted Patents)


Location History:

  • Kitami, JP (2008 - 2009)
  • Hokkaido, JP (2008 - 2012)

Company Filing History:


Years Active: 2008-2012

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6 patents (USPTO):Explore Patents

Title: Kazuhiro Ishikawa: Innovator in Hydrogen Technology

Introduction

Kazuhiro Ishikawa is a notable inventor based in Hokkaido, Japan. He has made significant contributions to the field of hydrogen technology, holding a total of 6 patents. His work focuses on the development of advanced materials and systems for hydrogen permeation and separation.

Latest Patents

Ishikawa's latest patents include a hydrogen permeation/separation thin membrane. This innovative membrane is composed of a Ni–Ti–Nb alloy, which is a cast foil material obtained through roll quenching and a refining heat treatment. The membrane boasts a thickness of 0.07 mm or less and features a specific composition of 10 to 47 atomic % of Nb, 20 to 52 atomic % of Ti, and a remainder containing 20 to 48 atomic % of Ni along with inevitable impurities. Additionally, the alloy structure consists of fine particles of a Nb-based solid solution alloy dispersed in a Ni–Ti(Nb) intermetallic compound.

Another significant patent is the hydrogen permeable module, which includes a hydrogen permeable membrane that allows hydrogen to permeate. The design restricts the outer peripheral part of the membrane while allowing the inside to expand towards the secondary side. This module operates by maintaining a pressure on the primary side that is equal to or greater than that on the secondary side.

Career Highlights

Throughout his career, Kazuhiro Ishikawa has worked with prominent organizations such as The Japan Steel Works, Ltd. and the National University Corporation Kitami Institute of Technology. His experience in these institutions has contributed to his expertise in materials science and hydrogen technology.

Collaborations

Ishikawa has collaborated with notable colleagues, including Kiyoshi Aoki and Tsuyoshi Sasaki. These partnerships have fostered innovation and advancements in their respective fields.

Conclusion

Kazuhiro Ishikawa's contributions to hydrogen technology through his patents and collaborations highlight his role as a leading inventor in this critical area. His work continues to influence advancements in energy solutions and materials science.

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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