Sadanobu Shirai

This inventor holds 9 USPTO granted patents, plus 4 CIPO patents and 6 EPO patents. Top assignees: Teikoku Seiyaku Co., Ltd., Teikoku Pharma USA, Inc., Teikoku Seiyaku Kabushiki Kaisha. Active years: 2011-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sadanobu Shirai. Retrieved from https://idiyas.com/inventor/sadanobu-shirai

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

USPTO Granted Patents = 9

% Patents Active = 44.4

CIPO Patents = 4

EPO Patents = 6 (Patent Applications = 5)

Average Co-Inventor Count = 2.7

ph-index = 2

Forward Citations = 29(Granted Patents)

Location History:

Kagawa, JP (2011)
Kagawa-ken, JP (2015)
Higashikagawa, JP (2018 - 2020)
Takamatsu, JP (2011 - 2021)

Company Filing History:

6 out of 95

Teikoku Seiyaku Co., Ltd.

patents

3 out of 52

Teikoku Pharma USA, Inc.

patents

3 out of 23

Teikoku Seiyaku Kabushiki Kaisha

where one patent can have more than one assignee

Years Active: 2011-2021

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9 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11179345 - Water-based adhesive patch (2021-11-23),

2. 10583043 - Backing having three-layer structure and aqueous patch using the backing (2020-03-10),

3. 9884030 - Patch backing for water-based pasty preparation (2018-02-06),

4. 9023392 - Methods of administering a dermatological agent to a subject (2015-05-05),

5. 8449913 - Methods of administering a dermatological agent to a subject (2013-05-28),

6. 8124122 - Female hormone-containing patch (2012-02-28),

7. 8029820 - Patches containing tulobuterol (2011-10-04),

8. 7988990 - Thin aqueous cataplasm (2011-08-02),

9. 7887842 - Methods of administering a dermatological agent to a subject (2011-02-15),

Title: Sadanobu Shirai: Innovator in Adhesive Technologies

Introduction

Sadanobu Shirai, based in Takamatsu, Japan, is a prominent inventor known for his contributions to adhesive technology. With a total of 9 patents to his name, Shirai has made significant strides in developing innovative solutions that enhance the efficacy and usability of adhesive products.

Latest Patents

One of his notable inventions is the water-based adhesive patch. This innovative patch is designed to stably contain either the S-enantiomer or the R-enantiomer of a drug at high concentrations over extended periods. Its excellent adhesive properties and shape retention allow for increased skin permeability of the drug, making it an effective option for medical applications. Additionally, Shirai developed a backing with a three-layer structure for the aqueous patch. This structure includes an inner fiber layer, a film layer with through-holes, and an air-permeable outer fiber layer. This design not only prevents leakage of the pasty preparation but also ensures that the aqueous patch can be applied comfortably for long durations.

Career Highlights

Sadanobu Shirai has had a rich professional journey, having worked with notable companies such as Teikoku Seiyaku Co., Ltd. and Teikoku Pharma USA, Inc. His expertise in adhesive technology has allowed him to influence standards and practices in the industry significantly.

Collaborations

Throughout his career, Shirai has collaborated with esteemed colleagues, including John Koo and Jutaro Shudo. These collaborations have played a vital role in advancing research and enhancing the quality of the innovations in adhesive technologies.

Conclusion

Sadanobu Shirai stands out as an influential inventor in the field of adhesive technology. His innovative approaches to creating effective adhesive patches are setting new standards in the industry and potentially improving patient care in medical fields. With a growing portfolio of patents, Shirai continues to contribute meaningfully to advancements in this critical area of innovation.

Profile summary based on public USPTO records.