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For the Inventor, By the Inventor

Odawara, Japan

Takayuki Hisamune

This inventor holds 7 USPTO granted patents. Top assignees: Kasei Optonix, Ltd., Mitsubishi Chemical Corporation. Active years: 1993-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takayuki Hisamune. Retrieved from https://idiyas.com/inventor/takayuki-hisamune

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

USPTO Granted Patents = 7

% Patents Active = 85.7

Average Co-Inventor Count = 2.8

ph-index = 4

Forward Citations = 69(Granted Patents)


Location History:

  • Odawara, JP (1993 - 2006)
  • Kanagawa, JP (2003 - 2007)

Company Filing History:

goldMedal6 out of 87 
 
Kasei Optonix, Ltd.
 patents
silverMedal2 out of 2,423 
 
Mitsubishi Chemical Corporation
 patents
where one patent can have more than one assignee

Years Active: 1993-2007

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7 patents (USPTO):Explore Patents
1. 7282849 - Alkaline earth aluminate phosphor, phosphor paste composition and vacuum ultraviolet excitation light emitting element (2007-10-16),
2. 7006172 - Color liquid crystal display devices (2006-02-28),
3. 6899825 - Bivalent metal silicate phosphor and process for its production, and a phosphor paste composition and a vacuum ultraviolet ray excitation type light-emitting device employing such a phosphor (2005-05-31),
4. 6585912 - Aluminate phosphor and process for its production, phosphor paste composition, and vacuum ultraviolet ray excitation type light-emitting device (2003-07-01),
5. 5989455 - Aluminate phosphor, process for preparing the same, and vacuum (1999-11-23),
6. 5611959 - Aluminate phosphor (1997-03-18),
7. 5231328 - Phosphor and ultraviolet ray excited fluorescent tube employing it (1993-07-27),

Title: The Innovations of Takayuki Hisamune

Introduction

Takayuki Hisamune is a prominent inventor based in Odawara, Japan. He has made significant contributions to the field of phosphor technology and liquid crystal display devices. With a total of seven patents to his name, Hisamune's work has had a lasting impact on the industry.

Latest Patents

His latest patents include advancements in alkaline earth aluminate phosphors, phosphor paste compositions, and vacuum ultraviolet excitation light emitting elements. These innovations focus on improving luminance retention and reducing deterioration over time under vacuum ultraviolet irradiation. His alkaline earth aluminate phosphor is represented by the formula a (MEu)O.6AlO, where M denotes at least one alkaline earth metal element from the group of Ba, Sr, and Ca. The phosphor exhibits a wide-band peak over a diffraction angle range of 28° to 31° in powder diffraction X-ray spectrum. Additionally, he has developed a color liquid crystal display device that integrates light shutters utilizing liquid crystals, a color filter with red, green, and blue elements, and a backlight for transmission illumination.

Career Highlights

Throughout his career, Takayuki Hisamune has worked with notable companies such as Kasei Optonix, Ltd. and Mitsubishi Chemical Corporation. His experience in these organizations has allowed him to refine his expertise in phosphor technology and display systems.

Collaborations

Hisamune has collaborated with talented individuals in the field, including Kouhei Matsuda and Naoto Kijima. These partnerships have contributed to the success of his innovative projects.

Conclusion

Takayuki Hisamune's contributions to phosphor technology and liquid crystal displays highlight his role as a leading inventor in Japan. His patents reflect a commitment to advancing technology and improving product performance.

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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