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Hiroki Ishikawa

USPTO Granted Patents = 18 (Patent Applications = 1)

Average Co-Inventor Count = 3.1

ph-index = 11

Forward Citations = 477(Granted Patents)

Location History:

Kakegawa, JP (1996)
Kanonji, JP (1999)
Mitoyo-gun, JP (2007)
Kagawa-ken, JP (1997 - 2011)
Kagawa, JP (2003 - 2017)

Company Filing History:

Sumitomo Seika Chemicals Co., Ltd.

patents

where one patent can have more than one assignee

Years Active: 1996-2017

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18 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9592316 - Disposable wearing article (2017-03-14),

2. 9180058 - Disposable wearing article (2015-11-10),

3. 7937777 - Disposable wearing article (2011-05-10),

4. 7553301 - Method for determining the illustration of a diaper (2009-06-30),

5. 7361802 - Disposable pull-on wearing article (2008-04-22),

6. 7331945 - Folded disposable diaper having indicia that visually change or become visible when the diaper is unfolded (2008-02-19),

7. 7214849 - Disposable wearing article (2007-05-08),

8. 7147629 - Disposable diaper (2006-12-12),

9. 6655544 - Container with a lid (2003-12-02),

10. 6604628 - Wet tissue container and combination thereof (2003-08-12),

11. 6543643 - Sheet package (2003-04-08),

12. 6329308 - Disposable wipe-off article (2001-12-11),

13. 6202250 - Wiping sheet (2001-03-20),

14. 5918735 - Package for stacked sheets, and process for manufacturing the same (1999-07-06),

15. 5845361 - Sweeper device (1998-12-08),

Title: Hiroki Ishikawa: Innovator in Disposable Wearing Articles

Introduction

Hiroki Ishikawa is a prominent inventor based in Kagawa, Japan. He has made significant contributions to the field of disposable wearing articles, particularly in the design and functionality of diapers. With a total of 18 patents to his name, Ishikawa's innovations have greatly impacted the industry.

Latest Patents

Ishikawa's latest patents include a disposable wearing article designed to prevent indicators from being transferred to a liquid-absorbent structure. This invention allows the indicators to develop a color reaction quickly in response to body exudates. The disposable diaper features a topsheet, a backsheet, and a liquid-absorbent structure interposed between these layers. The first backsheet facing the liquid-absorbent structure is equipped with indicators that contain a hot-melt polymer, an indicator agent, and a plasticizing oil. Additionally, he has developed another disposable wearing article that improves leakage prevention and inhibits color changes in unused states. This design includes multiple indicators arranged to react to moisture and body exudates, enhancing the product's functionality.

Career Highlights

Throughout his career, Ishikawa has worked with notable companies such as Unicharm Corporation and Sumitomo Seika Chemicals Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to innovative solutions in the disposable wearing article market.

Collaborations

Ishikawa has collaborated with esteemed colleagues, including Yasuhiko Kenmochi and Takeshi Bando. Their combined expertise has fostered advancements in the design and effectiveness of disposable wearing articles.

Conclusion

Hiroki Ishikawa's contributions to the field of disposable wearing articles demonstrate his commitment to innovation and improvement. His patents reflect a deep understanding of consumer needs and a drive to enhance product functionality.

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