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For the Inventor, By the Inventor

Kitakyushu, Japan

Hirotaka Nakabayashi

This inventor holds 17 USPTO granted patents and 3 EPO patents, primarily in Toilet Technology. Top assignee: Toto Ltd.. Active years: 2016-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirotaka Nakabayashi. Retrieved from https://idiyas.com/inventor/hirotaka-nakabayashi

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

USPTO Granted Patents = 17

% Patents Active = 100.0

 

Average Co-Inventor Count = 3.3

ph-index = 6

Forward Citations = 80(Granted Patents)


Company Filing History:

goldMedal17 out of 1,232 
 
Toto Ltd.
 patents

Years Active: 2016-2025

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Areas of Expertise:
Toilet Seat
Toilet Cover
Water Closet
Toilet Apparatus
Sanitary Products
Hygienic Solutions
Comfort Design
User Experience
Bathroom Innovations
Plumbing Fixtures
Ergonomic Design
Water Efficiency
17 patents (USPTO):Explore Patents
1. D1089575 - Toilet seat (2025-08-19),
2. D1089574 - Toilet seat (2025-08-19),
3. D1067394 - Toilet seat (2025-03-18),
4. D984608 - Toilet seat (2023-04-25),
5. D892999 - Toilet seat cover (2020-08-11),
6. D884854 - Toilet seat (2020-05-19),
7. 10595688 - Toilet apparatus (2020-03-24),
8. 10448791 - Toilet apparatus (2019-10-22),
9. 10349793 - Toilet apparatus (2019-07-16),
10. D844761 - Toilet seat (2019-04-02),
11. D844120 - Toilet seat (2019-03-26),
12. D831802 - Water closet (2018-10-23),
13. D811564 - Toilet seat (2018-02-27),
14. D810900 - Water closet (2018-02-20),
15. D810250 - Water closet (2018-02-13),

Title: Innovator Hirotaka Nakabayashi: A Pioneer in Toilet Seat Design

Introduction: Hirotaka Nakabayashi, an esteemed inventor based in Kitakyushu, Japan, has made significant contributions to the field of sanitary equipment. With a remarkable portfolio of 15 patents, he is particularly recognized for his innovative designs in toilet seat technology. Currently employed by Toto Ltd., Nakabayashi continues to enhance user experience in everyday bathroom fixtures.

Latest Patents: Among Hirotaka Nakabayashi's notable inventions is his latest patent for an advanced toilet seat, which showcases his commitment to improving functionality and comfort. This innovation is a testament to his expertise and understanding of consumer needs.

Career Highlights: Nakabayashi has built an impressive career at Toto Ltd., a leading company in the sanitary ware industry. His work reflects a deep integration of design and utility, making him a pivotal figure in the development of modern bathroom solutions. Throughout his tenure, Nakabayashi has consistently pushed the boundaries of what is possible in restroom innovation.

Collaborations: Hirotaka Nakabayashi has collaborated with talented coworkers, including Minoru Tani and Yuji Yoshioka. Together, they have driven forward various projects, contributing to the evolution of Toto Ltd.'s product offerings and ensuring high standards of quality and creativity.

Conclusion: In summary, Hirotaka Nakabayashi stands out as a prolific inventor whose 15 patents fundamentally enhance toilet seat design and functionality. His collaborations and innovative spirit at Toto Ltd. showcase the vital role of inventors in shaping everyday products that improve our lives. Through his work, Nakabayashi continues to inspire future innovations in the sanitary equipment industry.

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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