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For the Inventor, By the Inventor

Nishinomiya, Japan

Hisayuki Nakayama

This inventor holds 8 USPTO granted patents. Top assignee: Senju Pharmaceutical Co., Ltd.. Active years: 1992-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisayuki Nakayama. Retrieved from https://idiyas.com/inventor/hisayuki-nakayama

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

USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 3.3

ph-index = 3

Forward Citations = 29(Granted Patents)


Location History:

  • Akashi, JP (1996 - 1998)
  • Nishinomiya, JP (1992 - 2003)

Company Filing History:

goldMedal8 out of 229 
 
Senju Pharmaceutical Co., Ltd.
 patents

Years Active: 1992-2003

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8 patents (USPTO):Explore Patents
1. 6545058 - Ophthalmic compositions for soft contact lens, method of enhancing wettability of soft contact lens, and method of inhibiting terpenoid adsorption (2003-04-08),
2. 6479556 - Ophthalmic compositions for soft contact lens, method of enhancing wettability of soft contact lens and method of inhibiting terpenoid adsorption (2002-11-12),
3. 6432893 - Method for removal of protein from contact lenses (2002-08-13),
4. 5792736 - Method for stabilizing an agent for contact lenses (1998-08-11),
5. 5571504 - Method of stabilizing preparations for contact lenses (1996-11-05),
6. 5531917 - Method for stabilizing an agent for contact lenses (1996-07-02),
7. 5366985 - Method for preparation of an aqueous suspension (1994-11-22),
8. 5125982 - Method of cleaning hard contact lenses (1992-06-30),

Title: Innovations of Hisayuki Nakayama in Ophthalmic Compositions

Introduction: Hisayuki Nakayama is a prominent inventor based in Nishinomiya, Japan. He has made significant contributions to the field of ophthalmic compositions, particularly in the development of soft contact lenses. With a total of 8 patents to his name, Nakayama's work has greatly impacted the comfort and usability of contact lenses.

Latest Patents: His latest patents include innovative methods and compositions aimed at enhancing the performance of soft contact lenses. These patents focus on ophthalmic compositions that contain terpenoids as active ingredients. One of his notable inventions is a method of enhancing the wettability of soft contact lenses, which involves bringing terpenoids into contact with the lenses. Additionally, he has developed a method for inhibiting terpenoid adsorption onto soft contact lenses by adding polyoxyethylene sorbitan ester to the ophthalmic composition. These advancements help improve the wettability of soft contact lenses, thereby reducing discomfort and dryness during wear.

Career Highlights: Nakayama is associated with Senju Pharmaceutical Co., Ltd., where he continues to innovate in the field of ophthalmic solutions. His work has been instrumental in addressing common issues faced by contact lens users, such as dryness and discomfort.

Collaborations: Some of his notable coworkers include Kuniko Tsuchino and Akihiro Kimoto, who have collaborated with him on various projects related to ophthalmic compositions.

Conclusion: Hisayuki Nakayama's contributions to the field of ophthalmic compositions have led to significant advancements in the comfort and usability of soft contact lenses. His innovative patents continue to enhance the experience of contact lens wearers, making him a key figure in this area of research.

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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