Yokohama, Japan

Katsuhiko Yamada

This inventor holds 37 USPTO granted patents and 1 published patent application and 6 EPO patents, primarily in Superconducting Magnet Technology. Top assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd., Canon Kabushiki Kaisha. Active years: 1976-2023.

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

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

USPTO Granted Patents = 37 

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.6

ph-index = 9

Forward Citations = 290(Granted Patents)


Location History:

  • Yokohama, JA (1976)
  • Hiratsuka, JP (1988 - 1990)
  • Atsugi, JP (1989 - 2000)
  • Yokohama, JP (1980 - 2023)
  • Kanagawa, JP (2009 - 2023)

Company Filing History:


Years Active: 1976-2023

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Areas of Expertise:
Superconducting Magnet
Rare Earth Materials
Cryopump
Refrigerator
Inspection Device
Magnetic Sheet
Non-Contact Charging
Antenna Core
Inductance Element
Photoelectric Converter
Image Sensor
Signal Processing
37 patents (USPTO):Explore Patents

Title: Katsuhiko Yamada: Innovator in Rare Earth Technologies

Introduction

Katsuhiko Yamada, based in Yokohama, Japan, is a prolific inventor with an impressive portfolio of 37 patents. His work primarily focuses on the development of advanced materials and technologies that utilize rare earth elements, highlighting his commitment to innovation in the field.

Latest Patents

Among his latest contributions, Yamada has developed several significant inventions, including a rare earth regenerator material particle and a rare earth regenerator material particle group. These inventions aim to provide high long-term reliability in applications such as superconducting magnets, examination apparatuses, and cryopumps. Notably, his rare earth regenerator material particles contain rare earth elements and exhibit a distinct carbon component as revealed through X-ray photoelectron spectroscopy analysis.

Another noteworthy patent involves a refrigerator that incorporates rare earth cold accumulating material particles. These particles, which can be rare earth oxides or rare earth oxysulfides, are essential for efficient cooling processes. The design of these materials includes a sintered body with specific characteristics such as an average crystal grain size of 0.5 to 5 micrometers and a porosity ranging from 10 to 50 vol.%.

Career Highlights

Katsuhiko Yamada has made significant strides in his career through his association with reputable companies such as Toshiba Corporation and Toshiba Materials Co., Ltd. His expertise in rare earth materials has allowed him to contribute to advancements in technology that have substantial industrial implications.

Collaborations

Yamada has worked alongside esteemed coworkers, including Keiichi Fuse and Tadao Saito, which underscores the collaborative spirit within his field. Together, they have pushed the boundaries of innovation through their shared knowledge and expertise in rare earth technologies.

Conclusion

Katsuhiko Yamada stands out as a key figure in the realm of rare earth innovations. His extensive patent portfolio and collaborative efforts contribute significantly to advancements in technology, showcasing the vital role of inventors in driving progress and improving industrial applications.

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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