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For the Inventor, By the Inventor

Chiba, Japan

Takeo Watanabe

This inventor holds 10 USPTO granted patents. Top assignees: Showa Denko K.k., Showa Denko Kabushiki Kaisha, Other. Active years: 2000-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeo Watanabe. Retrieved from https://idiyas.com/inventor/takeo-watanabe-k34q0cxh

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

Calculating rank
USPTO Granted Patents = 10

% Patents Active = 70.0

Average Co-Inventor Count = 3.1

ph-index = 5

Forward Citations = 104(Granted Patents)


Location History:

  • Musashimurayama, JP (2004)
  • Chiba, JP (2000 - 2011)

Company Filing History:

goldMedal7 out of 1,961 
 
Showa Denko K.k.
 patents
silverMedal1 out of 405 
 
Showa Denko Kabushiki Kaisha
 patents
bronzeMedal2 out of 834,601 
Other
 patents

Years Active: 2000-2011

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10 patents (USPTO):Explore Patents
1. 8021033 - Light guide member, planar light source device provided with the light guide member, and display apparatus using the planar light source device (2011-09-20),
2. 7942546 - Light guide member having light mixing protrusion, flat light source device, and display device (2011-05-17),
3. 7901124 - Light guide member, planar light source device using the light guide member, and display apparatus (2011-03-08),
4. 6783840 - Resist ink composition (2004-08-31),
5. 6741367 - Image forming apparatus having data compression/decompression system (2004-05-25),
6. 6486225 - Photocurable composition (2002-11-26),
7. 6316089 - Photocurable prepreg sheet for waterproofing, method and apparatus for production of prepreg sheet, and waterproofing method using the sheet (2001-11-13),
8. 6207726 - Photocurable prepreg composition and production method thereof (2001-03-27),
9. 6165686 - Photocurable composition and color reversion preventing method (2000-12-26),
10. 6110987 - Photocurable composition and curing process therefor (2000-08-29),

Title: Takeo Watanabe: Innovator in Light Guide Technology

Introduction

Takeo Watanabe is a prominent inventor based in Chiba, Japan. He has made significant contributions to the field of light guide technology, holding a total of 10 patents. His innovative designs have advanced the functionality and efficiency of display apparatuses.

Latest Patents

Watanabe's latest patents include a light guide member and a planar light source device that utilizes this member. The light guide member is designed to diffuse and guide upward light emitted from a luminous device. It features a light reflecting portion on its bottom face, strategically placed to enhance light distribution. Another notable patent involves a light guide member with light mixing protrusions, which reduces color unevenness and luminance nonuniformity when creating white light from multiple LED sources. This design includes a cylindrical protrusion for RGB LED lights and a conical depression to facilitate effective light mixing.

Career Highlights

Throughout his career, Watanabe has worked with notable companies, including Showa Denko K.K. His work has been instrumental in developing advanced lighting solutions that are widely used in various display technologies.

Collaborations

Watanabe has collaborated with talented individuals such as Hirotoshi Kamata and Shuichi Sugita. These partnerships have contributed to the successful development of his innovative technologies.

Conclusion

Takeo Watanabe's contributions to light guide technology have significantly impacted the industry. His patents reflect a commitment to innovation and excellence in design.

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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