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For the Inventor, By the Inventor

Tokyo, Japan

Noriko Yamakawa

This inventor holds 15 USPTO granted patents. Top assignees: Showa Shell Sekiyu K.k., Showa Shell Sekiyu Kabushiki Kaisha, Nippondenso Co., Ltd.. Active years: 1991-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Noriko Yamakawa. Retrieved from https://idiyas.com/inventor/noriko-yamakawa

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

USPTO Granted Patents = 15

% Patents Active = 100.0

Average Co-Inventor Count = 3.7

ph-index = 6

Forward Citations = 98(Granted Patents)


Location History:

  • Atsugi, JP (1991)
  • Chiyoda, JP (1994)
  • Tokyo, JP (1992 - 1999)

Company Filing History:

goldMedal7 out of 46 
 
Showa Shell Sekiyu K.k.
 patents
silverMedal7 out of 36 
 
Showa Shell Sekiyu Kabushiki Kaisha
 patents
bronzeMedal1 out of 3,252 
 
Nippondenso Co., Ltd.
 patents
4. 1 out of 1 
 
Showa Shell Sekiyo Kabushiki Kaisha
 patent
5. 1 out of 15 
 
Teikoku Chemical Industry Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1991-1999

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15 patents (USPTO):Explore Patents
1. 5891359 - Liquid crystal compound (1999-04-06),
2. 5837163 - Liquid crystal compounds (1998-11-17),
3. 5433887 - Liquid crystal compounds (1995-07-18),
4. 5330678 - Liquid crystal compound (1994-07-19),
5. 5310500 - Liquid crystal compounds (1994-05-10),
6. 5207947 - Liquid crystal compound (1993-05-04),
7. 5207946 - Liquid crystal compounds (1993-05-04),
8. 5202054 - Liquid crystal compound (1993-04-13),
9. 5130050 - Liquid crystal compound (1992-07-14),
10. 5116531 - Liquid crystal compound (1992-05-26),
11. 5110498 - Liquid crystal compound (1992-05-05),
12. 5110497 - Component for liquid crystal composition and liquid crystal composition (1992-05-05),
13. 5110496 - Liquid crystal compound (1992-05-05),
14. 5096613 - Optically active fluorine-containing alcohol compounds and liquid (1992-03-17),
15. 5046823 - Ferroelectric liquid crystal electro-optic apparatus and manufacturing (1991-09-10),

Title: Noriko Yamakawa: Pioneering Innovations in Liquid Crystal Compounds

Introduction:

Noriko Yamakawa, a distinguished inventor based in Tokyo, Japan, has made significant contributions to the field of liquid crystal compounds. With a total of 15 patents to his name, Yamakawa-san continues to push the boundaries of innovation in display and electrooptical devices.

Latest Patents:

Yamakawa's latest patents focus on novel liquid crystal compounds that exhibit tristable molecular orientation states. These compounds, represented by specific chemical formulas, hold immense potential for enhancing the performance of display devices and electrooptical applications.

Career Highlights:

Throughout his career, Noriko Yamakawa has been associated with prestigious companies such as Showa Shell Sekiyu Kabushiki Kaisha and Showa Shell Sekiyu K.K. His expertise and dedication have played a pivotal role in driving technological advancements in the industry.

Collaborations:

Yamakawa has collaborated closely with notable coworkers, including Yoshiichi Suzuki and Ichiro Kawamura, in developing cutting-edge liquid crystal technologies. This teamwork has fostered a culture of innovation and knowledge exchange, leading to groundbreaking inventions in the field.

Conclusion:

In conclusion, Noriko Yamakawa's remarkable work in the realm of liquid crystal compounds underscores his commitment to pioneering innovations. His inventive spirit and collaborative efforts continue to shape the landscape of display technologies, marking him as a visionary inventor in the realm of patents and inventions.

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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