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For the Inventor, By the Inventor

Chiba, Japan

Kei Hirano

USPTO Granted Patents = 13

Average Co-Inventor Count = 2.0

ph-index = 4

Forward Citations = 35(Granted Patents)


Company Filing History:

goldMedal13 out of 2,899 
 
Seiko Instruments Inc
 patents

Years Active: 2004-2014

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13 patents (USPTO):Explore Patents
1. 8724430 - Retrograde display mechanism and timepiece having the same (2014-05-13),
2. 8279718 - Calendar mechanism and analog timepiece equipped with same mechanism (2012-10-02),
3. 8279717 - Calendar mechanism and analog timepiece equipped with same mechanism (2012-10-02),
4. 7961556 - Day display apparatus and watch having the same (2011-06-14),
5. 7609588 - Multifunctional clock capable of realizing plurality of movement layouts (2009-10-27),
6. 7443768 - Multifunctional timepiece including plural types of hand operating train wheels (2008-10-28),
7. 7275860 - Display correcting mechanism and timepiece having display correcting mechanism (2007-10-02),
8. 7269102 - Multifunction timepiece having fan shape moving hand train wheel and fan shape moving hand train wheel apparatus (2007-09-11),
9. 7269101 - Multifunction timepiece having fan shape moving hand mechanism including return spring and fan shape moving hand train wheel apparatus (2007-09-11),
10. 7215602 - Multifunction timepiece capable of constituting plural fan shape moving hand train wheel layouts (2007-05-08),
11. 6987712 - Analog chronograph timepiece having plural motors (2006-01-17),
12. 6965544 - Electronic timepiece (2005-11-15),
13. 6755567 - Hand motion irregularity suppressed timepiece (2004-06-29),

Title: Innovations in Timekeeping: The Contributions of Kei Hirano

Introduction

Kei Hirano, a prominent inventor based in Chiba, Japan, has made significant strides in the field of horology with a total of 13 patents. His innovative approach towards timekeeping devices showcases a blend of creativity and technical prowess, contributing to the advancement of the industry.

Latest Patents

Hirano's latest patents reflect his expertise and innovative thinking. One of his notable inventions is the retrograde display mechanism and timepiece that incorporates a retrograde display mechanism main body. This mechanism includes a time value driving wheel that advances daily, accompanied by a time value finger, enabling both date and day display with precision. The design features a fan-shaped wheel operating lever that efficiently engages with a drive cam portion, ensuring smooth operation.

Additionally, he developed a calendar mechanism specifically designed for analog timepieces, allowing for an easy and reliable alignment of first and second date indicators during rotation. This mechanism effectively integrates a first date indicator gear and a drive cam lever, contributing to a seamless user experience when interpreting time and date information.

Career Highlights

Kei Hirano currently works at Seiko Instruments Inc., a corporation deeply rooted in the watchmaking industry. His work at Seiko has allowed him to merge his inventive capabilities with practical applications, further enhancing the company’s reputation for precision and innovation in horology.

Collaborations

Throughout his career, Hirano has collaborated with esteemed colleagues including Mamoru Watanabe and Takeshi Tokoro. These collaborations have facilitated a dynamic exchange of ideas and have significantly contributed to the success of their projects, further pushing the boundaries of traditional timepiece designs.

Conclusion

In conclusion, Kei Hirano's contributions to the field of horology through his patents exemplify the spirit of innovation that exists at the intersection of technology and craftsmanship. His ongoing work at Seiko Instruments Inc. not only showcases his dedication as an inventor but also enhances the user experience in timekeeping devices worldwide.

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