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For the Inventor, By the Inventor

Tokyo, Japan

Yukinari Yamashita

This inventor holds 15 USPTO granted patents and 1 published patent application, primarily in Water Quality Management. Top assignees: Organo Corporation, Nec Corporation, Other. Active years: 1997-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yukinari Yamashita. Retrieved from https://idiyas.com/inventor/yukinari-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 = 15 

% Patents Active = 100.0

Average Co-Inventor Count = 3.5

ph-index = 5

Forward Citations = 182(Granted Patents)


Location History:

  • Saitama, JP (1997 - 1998)
  • Toda, JP (2001)
  • Tokyo, JP (2005 - 2024)

Company Filing History:

goldMedal14 out of 165 
 
Organo Corporation
 patents
silverMedal2 out of 36,770 
 
Nec Corporation
 patents
bronzeMedal1 out of 834,659 
Other
 patents
where one patent can have more than one assignee

Years Active: 1997-2025

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Areas of Expertise:
Water Quality
Ion Adsorption
Substrate Treatment
Hydrogen Peroxide
Ozone Water
Diluted Solution
High-Purity Water
Electrolytic Water
Cleaning Methods
Measuring Systems
Electronic Parts
Production Apparatus
15 patents (USPTO):Explore Patents
1. 12275652 - Water quality management method, ion adsorption device, information processing device and information processing system (2025-04-14),
2. 11901174 - Substrate treatment method and substrate treatment equipment (2024-02-13),
3. 11491517 - Method and system for cleaning copper-exposed substrate (2022-11-08),
4. 11408868 - Measuring system and measuring method of hydrogen peroxide concentration (2022-08-09),
5. 11229887 - Ozone water supply method and ozone water supply device (2022-01-25),
6. 11004674 - Substrate treatment method and substrate treatment equipment (2021-05-11),
7. 10857512 - Diluted solution production method and diluted solution production apparatus (2020-12-08),
8. 10434546 - Method and system for cleaning copper-exposed substrate (2019-10-08),
9. 10406493 - Diluted solution production method and diluted solution production apparatus (2019-09-10),
10. 6884344 - Hydrogen-dissolved water production apparatus (2005-04-26),
11. 6290777 - Method and device for washing electronic parts member, or the like (2001-09-18),
12. 5720869 - Equipment and process for producing high-purity water (1998-02-24),
13. 5635053 - Method and apparatus for cleaning electronic parts (1997-06-03),
14. 5616221 - Electrolytic ionized water producing apparatus (1997-04-01),
15. 5593554 - Electrolytic ionized water producing apparatus (1997-01-14),

Title: Innovator Yukinari Yamashita: Pioneering Water Quality and Substrate Treatment Technologies

Introduction

Yukinari Yamashita is a renowned inventor based in Tokyo, Japan, with a significant portfolio of 15 patents. His work focuses primarily on advancements in water quality management and substrate treatment technologies. With his innovative approach, he has contributed valuable inventions aimed at improving both environmental solutions and industrial processes.

Latest Patents

Among his latest patents, several noteworthy inventions stand out. Firstly, his water quality management method innovatively addresses the management of impurity ions in water. This method incorporates an ion adsorption device, where water being analyzed is treated to adsorb harmful ions effectively. The invention emphasizes precision, utilizing an accumulated flow rate meter to ensure accurate ion removal.

Additionally, Yamashita has developed a substrate treatment method and corresponding equipment. This innovation enhances the protection of metal wiring on substrates from corrosion and oxidation. It features a specialized treatment chamber where a substrate can be treated with a hydrogen-dissolved treatment solution, made possible by a catalytic unit using platinum-group metal catalysts. This technology highlights Yukinari's commitment to advancing material integrity in industrial applications.

Career Highlights

Throughout his career, Yukinari Yamashita has collaborated with various esteemed companies, including Organo Corporation and NEC Corporation. His experience in these organizations has further cultivated his expertise and enabled him to spearhead pioneering projects that underline his inventive spirit.

Collaborations

Yukinari has worked alongside notable colleagues such as Koji Yamanaka and Daisaku Yano. Their teamwork and collaborative efforts have contributed to the successful development of innovative solutions in the fields of water management and substrate treatment.

Conclusion

Yukinari Yamashita continues to lead in the realm of inventions that tackle pressing environmental and industrial challenges. With a dedicated approach to innovation, his work is not only valuable for current applications but also sets the groundwork for future advancements in technology.

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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