Tokyo, Japan

Keiichi Sato

USPTO Granted Patents = 76 

 

Average Co-Inventor Count = 2.7

ph-index = 12

Forward Citations = 548(Granted Patents)

Forward Citations (Not Self Cited) = 524(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Yokohama, JP (1993 - 1998)
  • Kanagawa, JP (1991 - 2006)
  • Yamagata, JP (2005 - 2007)
  • Kawasaki, JP (1985 - 2016)
  • Ome, JP (2018)
  • Tokyo, JP (1985 - 2024)

Company Filing History:

goldMedal15 out of 1,572 
 
Mitsumi Electric Company Ltd.
 patents
silverMedal14 out of 228 
 
Hitachi Software Engineering Company, Ltd.
 patents
bronzeMedal13 out of 499 
 
Mitsubishi Kasei Corporation
 patents
47 out of 2,348 
 
Mitsubishi Chemical Corporation
 patents
56 out of 898 
 
Sumitomo Metal Mining Company, Ltd.
 patents
63 out of 614 
 
Mitsubishi Chemical Industries Limited
 patents
73 out of 2,510 
 
Ebara Corporation
 patents
83 out of 4,629 
 
Mitsubishi Heavy Industries Limited
 patents
92 out of 651 
 
Lintec Corporation
 patents
102 out of 77 
 
Hitachi Solutions, Ltd.
 patents
111 out of 223 
 
Toyo Ink Manufacturing Company
 patents
121 out of 82 
 
Origin Electric Company, Limited
 patents
131 out of 24 
 
Ntt Facilities, Inc.
 patents
141 out of 34 
 
Sony/tektronix Corporation
 patents
151 out of 836 
 
Hitachi Cable, Inc.
 patents
161 out of 39,238 
 
Fujitsu Corporation
 patents
171 out of 90,697 
 
Canon Kabushiki Kaisha
 patents
181 out of 3,557 
 
Nippon Steel Corporation
 patents
191 out of 8,194 
 
Olympus Corporation
 patents
where one patent can have more than one assignee

Years Active: 1985-2025

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Areas of Expertise:
Dark Powder Dispersion
Infrared Absorbing Material
Cesium Tungsten Oxide
Composite Tungsten Oxide
Lens Drive Device
Tissue Excision Instrument
Semiconductor Nanoparticles
Optical Scanning Device
Biopolymer Detection
Coal Deactivation Treatment
Organic Material-Coated Nanoparticles
Optical Disc Recording
76 patents (USPTO):Explore Patents

Title: Innovations of Keiichi Sato: A Pioneer in Tungsten Oxide Films

Introduction: Keiichi Sato, a prominent inventor based in Tokyo, Japan, has made significant contributions to the field of materials science with a remarkable portfolio of 74 patents. His innovations primarily focus on cesium tungsten oxide films, which exhibit unique properties for heat ray shielding and radio wave transmissivity, propelling advancements in various industries.

Latest Patents: Among Sato's latest inventions are the patents concerning the manufacturing of cesium tungsten oxide films. These films are designed to offer high heat ray shielding performance while allowing radio wave transmission. The innovative manufacturing method employs a dry process, facilitating the creation of films that maintain a hexagonal crystal structure. Another notable patent involves a composite tungsten oxide film that efficiently manages light and heat, highlighting its dual functions of light absorption and electron release while possessing significant transparency and infrared absorption properties.

Career Highlights: Keiichi Sato's career has been marked by his association with leading technology firms. He has worked with Mitsumi Electric Company Ltd. and Hitachi Software Engineering Company, Ltd., contributing his expertise to various innovative projects and expanding his horizon in the field of materials development.

Collaborations: Throughout his career, Sato has collaborated with esteemed colleagues like Susumu Kuwabata and Yuji Kawaragi. These partnerships have fostered a rich exchange of ideas that have likely influenced his patented inventions and propelled advancements in their respective fields.

Conclusion: Keiichi Sato's innovative work in cesium tungsten oxide films and composite tungsten oxide films underscores his vital role as an inventor. His extensive patent portfolio not only demonstrates his creativity but also his commitment to advancing technologies that could impact multiple industries. His collaborations with other professionals further attest to the collective effort behind significant scientific breakthroughs, marking Sato as a key figure in contemporary materials science.

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