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For the Inventor, By the Inventor

Urawa, Japan

Hisashi Chigusa

USPTO Granted Patents = 16

Average Co-Inventor Count = 3.9

ph-index = 4

Forward Citations = 42(Granted Patents)


Location History:

  • Fukaya, JP (1995 - 1997)
  • Urawa, JP (1999 - 2003)
  • Saitama-ken, JP (2003)
  • Saitama, JP (2004)
  • Tokyo, JP (2007)
  • Yokohama, JP (2012)

Company Filing History:

goldMedal15 out of 52,711 
 
Kabushiki Kaisha Toshiba
 patents
silverMedal3 out of 11 
 
Fuji Pigment Co., Ltd.
 patents
bronzeMedal1 out of 832,680 
Other
 patents
where one patent can have more than one assignee

Years Active: 1995-2012

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16 patents (USPTO):Explore Patents
1. 8304132 - Fuel cell (2012-11-06),
2. 7202594 - Display device panel with an emitting fluorescent film composed of red fluorescent particles covered with a red pigment (2007-04-10),
3. 6794809 - Display unit having antireflection antistatic film and manufacturing method thereof (2004-09-21),
4. 6570317 - Cathode-ray tube and method for manufacturing the same (2003-05-27),
5. 6544326 - Pigment dispersion composition, display apparatus, and method of manufacture the apparatus (2003-04-08),
6. 6411028 - Conductive anti-reflection film and cathode ray tube (2002-06-25),
7. 6325901 - Method of producing a cathode-ray tube and apparatus therefor (2001-12-04),
8. 6184125 - Method of fabricating conductive anti-reflection film for a cathode ray tube (2001-02-06),
9. 6157125 - Conductive anti-reflection film (2000-12-05),
10. 5989649 - Pigment dispersion composition, display apparatus, and method of (1999-11-23),
11. 5965975 - Conductive anti-reflection film, fabrication method thereof, and cathode (1999-10-12),
12. 5962966 - Conductive anti-reflection film for cathode ray tube (1999-10-05),
13. 5898263 - Pigment dispersion composition, display apparatus, and method of (1999-04-27),
14. 5885752 - Method of manufacturing display screen (1999-03-23),
15. 5652476 - Antireflection film and display apparatus comprising the same (1997-07-29),

Title: Hisashi Chigusa: Innovator in Fuel Cell and Display Technology

Introduction

Hisashi Chigusa is a prominent inventor based in Urawa, Japan. He holds a total of 16 patents that showcase his contributions to the fields of fuel cell technology and display devices. His innovative work has significantly impacted the advancement of these technologies.

Latest Patents

One of Hisashi Chigusa's latest patents involves a fuel cell design. This design features a membrane electrode assembly that includes multiple unit cells composed of an electrolyte membrane, an anode with catalyst layers, and a cathode with corresponding catalyst layers. The unique aspect of this invention is that the thickness of at least one of the catalyst layers gradually decreases toward the neighboring unit cell. Another notable patent is for a display device panel that incorporates an emitting fluorescent film made of red fluorescent particles. This film is designed to enhance the display quality by utilizing specific particle sizes and compositions to achieve optimal luminescent properties.

Career Highlights

Throughout his career, Hisashi Chigusa has worked with notable companies such as Toshiba Corporation and Fuji Pigment Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to his success as an inventor.

Collaborations

Hisashi Chigusa has collaborated with several talented individuals in his field, including Michiyo Abe and Hidemi Matsuda. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Hisashi Chigusa's contributions to fuel cell and display technology demonstrate his innovative spirit and dedication to advancing these fields. His work continues to influence the industry and inspire future inventors.

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