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For the Inventor, By the Inventor

Nisshin, Japan

Tatsuya Yamashita

This inventor holds 14 USPTO granted patents, primarily in Optical Waveguides. Top assignees: Toyoda Gosei Co., Ltd., Kabushiki Kaisha Toyota Chuo Kenkyusho, Denso Corporation. Active years: 2004-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuya Yamashita. Retrieved from https://idiyas.com/inventor/tatsuya-yamashita

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

Calculating rank
USPTO Granted Patents = 14

% Patents Active = 35.7

Average Co-Inventor Count = 4.7

ph-index = 7

Forward Citations = 127(Granted Patents)


Location History:

  • Aichi-gun, JP (2004 - 2005)
  • Aichi, JP (2005)
  • Nisshin, JP (2007 - 2008)
  • Aichi-ken, JP (2004 - 2011)
  • Nagakute, JP (2017 - 2020)
  • Kariya, JP (2020)

Company Filing History:

goldMedal6 out of 3,086 
 
Toyoda Gosei Co., Ltd.
 patents
silverMedal5 out of 1,154 
 
Kabushiki Kaisha Toyota Chuo Kenkyusho
 patents
bronzeMedal2 out of 20,443 
 
Denso Corporation
 patents
4. 2 out of 39,010 
 
Toyota Jidosha Kabushiki Kaisha
 patents
5. 1 out of 176 
 
Mirise Technologies Corporation
 patents
6. 1 out of 190 
 
Shizuoka University
 patents
where one patent can have more than one assignee

Years Active: 2004-2026

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Areas of Expertise:
Optical Waveguide
Laser Radar
Phase Modulator
Diffraction Grating
Optical Filter
Microcomputer
Material Composition
Optical Phased Array
Velocity Determination
Manufacturing Method
Optical Device
Fabrication Method
14 patents (USPTO):Explore Patents
1. 12589540 - Manufacturing method for molded article (2026-03-31),
2. 12436414 - Optical phase modulator (2025-10-07),
3. 10739457 - Laser radar, and light receiving method of laser radar (2020-08-11),
4. 10733125 - Microcomputer (2020-08-04),
5. 9939577 - Diffraction structure, diffraction grating, diffraction grating array, optical phased array, optical modulator, optical filter, laser source (2018-04-10),
6. 9817121 - Radar apparatus and method of determining sign of velocity (2017-11-14),
7. 7907808 - Optical waveguide and method for manufacturing the same (2011-03-15),
8. 7399498 - Material composition for producing optical waveguide and method for producing optical waveguide (2008-07-15),
9. 7166322 - Optical waveguide and method for producing the same (2007-01-23),
10. 6932880 - Method of manufacturing optical waveguide device (2005-08-23),
11. 6925233 - Optical waveguide device manufacturing jig, method of manufacturing optical waveguide device by use of the same jig, and the same optical waveguide device (2005-08-02),
12. 6890589 - Self-formable optical waveguide material composition (2005-05-10),
13. 6823116 - Optical waveguide device manufacturing jig, method of manufacturing optical waveguide device by use of the same jig, and the same optical waveguide device (2004-11-23),
14. 6703188 - Method of fabricating optical waveguide structure (2004-03-09),

Title: Tatsuya Yamashita: Innovator in Optical Technologies

Introduction

Tatsuya Yamashita is a prominent inventor based in Nisshin, Japan. He has made significant contributions to the field of optical technologies, holding a total of 14 patents. His work has advanced the development of devices that utilize light in innovative ways.

Latest Patents

Among his latest patents is an optical phase modulator. This device features a rib part that extends in a specific direction, comprising an N-type first rib portion and a P-type second rib portion arranged to create a PN junction. Additionally, it includes an N-type first slab portion connected to the first rib and a P-type second slab portion connected to the second rib, forming a PN structure. Another notable patent is for a laser radar device, which includes a light source and a projection light scanner that generates transmission light for targeting objects. This device is designed to enhance the accuracy and efficiency of laser radar technology.

Career Highlights

Tatsuya Yamashita has worked with notable companies such as Toyoda Gosei Co., Ltd. and Toyota Central R&D Labs, Inc. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in optical technologies.

Collaborations

He has collaborated with esteemed colleagues, including Manabu Kagami and Yukitoshi Inui. These partnerships have fostered a creative environment that has led to the development of advanced technologies.

Conclusion

Tatsuya Yamashita's contributions to optical technologies through his patents and collaborations highlight his role as a leading inventor in the field. His innovative work continues to influence advancements in laser and optical systems.

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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