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For the Inventor, By the Inventor

Ibaraki, Japan

Hirohiko Murakami

This inventor holds 5 USPTO granted patents. Top assignees: Nihon Shinku Gijutsu Kabushiki Kaisha, Other. Active years: 2001-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirohiko Murakami. Retrieved from https://idiyas.com/inventor/hirohiko-murakami-o3b3h0cx

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

Calculating rank
USPTO Granted Patents = 5

% Patents Active = 60.0

Average Co-Inventor Count = 3.7

ph-index = 5

Forward Citations = 64(Granted Patents)


Location History:

  • Mie, JP (2003)
  • Ibaraki-ken, JP (2001 - 2004)

Company Filing History:

goldMedal1 out of 85 
 
Nihon Shinku Gijutsu Kabushiki Kaisha
 patents
silverMedal4 out of 834,601 
Other
 patents

Years Active: 2001-2004

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5 patents (USPTO):Explore Patents
1. 6812634 - Graphite nanofibers, electron-emitting source and method for preparing the same, display element equipped with the electron-emitting source as well as lithium ion secondary battery (2004-11-02),
2. 6652923 - Electron-emitting source, electron-emitting module, and method of manufacturing electron-emitting source (2003-11-25),
3. 6522055 - Electron-emitting source, electron-emitting module, and method of manufacturing electron-emitting source (2003-02-18),
4. 6214259 - Dispersion containing Cu ultrafine particles individually dispersed therein (2001-04-10),
5. 6194316 - Method for forming CU-thin film (2001-02-27),

Title: Hirohiko Murakami: Innovator in Nanotechnology and Battery Development

Introduction

Hirohiko Murakami is a prominent inventor based in Ibaraki-ken, Japan. He has made significant contributions to the fields of nanotechnology and battery development. With a total of 5 patents to his name, Murakami's work focuses on advanced materials and electron-emitting sources.

Latest Patents

Murakami's latest patents include innovations such as graphite nanofibers, an electron-emitting source and method for preparing the same, and a display element equipped with the electron-emitting source. His graphite nanofiber material features a cylindrical structure where graphene sheets, shaped like ice-cream cones with their tips cut off, are layered through catalytic metal particles. This material is designed for various applications, including electron-emitting sources, display elements, and lithium-ion secondary batteries. The electron-emitting source boasts a high electron emission density and operates effectively at low electric fields, surpassing the capabilities of carbon nanotubes. Additionally, the lithium-ion secondary battery developed from his research offers a long cycle life, fast charging ability, and high charging and discharging capacities.

Career Highlights

Throughout his career, Murakami has worked with notable companies, including Nihon Shinku Gijutsu Kabushiki Kaisha. His innovative approaches have led to advancements in electron-emitting sources and battery technologies, making him a key figure in these industries.

Collaborations

Murakami has collaborated with several professionals in his field, including Sashiro Uemura and Takeshi Nagasako. Their joint efforts have contributed to the development of cutting-edge technologies in nanotechnology and energy storage.

Conclusion

Hirohiko Murakami's contributions to nanotechnology and battery development have established him as a leading inventor in his field. His innovative patents and collaborations continue to influence advancements in technology and energy solutions.

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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