Fukuoka, Japan

Hajime Kakihana


Average Co-Inventor Count = 1.9

ph-index = 13

Forward Citations = 634(Granted Patents)

Forward Citations (Not Self Cited) = 628(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kitakyusyu, JP (2008 - 2009)
  • Morrow, GA (US) (2008 - 2011)
  • Fukuoka, JP (2004 - 2013)
  • Kitakyushu, JP (2006 - 2014)

Company Filing History:


Years Active: 2004-2014

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Areas of Expertise:
Toilet Technology
Bidet Controllers
Grab Bars
Faucet Design
Shower Heads
Bathtub Innovations
Water Closets
Sink Bowls
Shower Panels
Pedestal Sinks
In-Wall Shower Nozzles
Bathroom Accessories
51 patents (USPTO):Explore Patents

Title: The Innovative Journey of Hajime Kakihana

Introduction: Hajime Kakihana, a prominent inventor based in Fukuoka, Japan, holds an impressive portfolio of 51 patents. His notable contributions to the field of sanitary products showcase his commitment to innovation and design excellence.

Latest Patents: Among his latest patents, Kakihana has developed pioneering designs for toilets and lavatories. These inventions emphasize functionality and user comfort, reflecting the high standards of quality and innovation synonymous with his employer, Toto Ltd.

Career Highlights: Over the course of his career, Kakihana has established himself as a key player in the industry. With a wealth of experience and a keen understanding of consumer needs, he has continuously pushed the boundaries of sanitary technology.

Collaborations: Collaborating with esteemed colleagues such as James Piatt and Mitsuya Obara, Kakihana has fostered a creative environment that encourages innovation. These partnerships have led to groundbreaking advancements in the products designed at Toto Ltd.

Conclusion: Hajime Kakihana's dedication to invention and design has made a significant impact on the sanitary industry. As he continues to innovate, his future work promises to further enhance the user experience in everyday essentials like toilets and lavatories.

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