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For the Inventor, By the Inventor

Okaya, Japan

Eisaku Shimizu

USPTO Granted Patents = 17


Average Co-Inventor Count = 2.2

ph-index = 6

Forward Citations = 86(Granted Patents)


Location History:

  • Suwa, JP (1998 - 2005)
  • Okaya, JP (2001 - 2010)

Company Filing History:

goldMedal17 out of 33,418 
 
Seiko Epson Corporation
 patents

Years Active: 1998-2010

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17 patents (USPTO):Explore Patents
1. 7710833 - Radio-controlled timepiece and method of changing the waveform discrimination standard (2010-05-04),
2. 7075859 - Radio-controlled timepiece and control method for the same (2006-07-11),
3. 6967901 - Radio-controlled timepiece and control method for a radio-controlled timepiece (2005-11-22),
4. 6956794 - Electronically controlled timepiece, and power supply control method and time correction method therefore (2005-10-18),
5. 6829199 - Electronic apparatus, electronically controlled mechanical timepiece, methods of controlling them, program for controlling electronic apparatus, and storage medium (2004-12-07),
6. 6819633 - Braking without stopping generator for timepiece and other electronic units (2004-11-16),
7. 6795378 - Electronic device, electronically controlled mechanical timepiece, and control method therefor (2004-09-21),
8. 6757220 - Electronically controlled timepiece, and power supply control method and time correction method therefor (2004-06-29),
9. 6693852 - Electronic device, electronically-controlled mechanical timepiece, and electronic device controlling method (2004-02-17),
10. 6639874 - Pointer electronic timepiece, operating method and control program thereof (2003-10-28),
11. 6584043 - Electronically controlled mechanical watch and method of preventing overcharge (2003-06-24),
12. 6483276 - Electronic device with variable chopping signal and duty ratio selection for strong braking (2002-11-19),
13. 6466519 - Electronic device, electronic timepiece and power control method (2002-10-15),
14. 6414909 - Electrically controlled mechanical timepiece and control method therefor (2002-07-02),
15. 6373789 - Electronically controlled mechanical timepiece and method controlling the same (2002-04-16),

Title: Innovator Spotlight: Eisaku Shimizu of Okaya, Japan

Introduction

Eisaku Shimizu is a prominent inventor based in Okaya, Japan, known for his contributions to the field of timekeeping technology. With an impressive portfolio of 17 patents, he has dedicated his career to enhancing the functionality and accuracy of timepieces. His innovative designs and methods reflect his commitment to advancing the field of horology.

Latest Patents

Eisaku Shimizu's latest inventions include sophisticated radio-controlled timepieces. One such patent describes a radio-controlled timepiece that features a reception means to receive standard radio signals containing time information. The device comprises a demodulation means that processes the received signals, a waveform discrimination mechanism that evaluates the signal's waveform, and a time information conversion system that translates the evaluated code into readable time format. This design also incorporates a waveform discrimination standard changing means, allowing for dynamic adjustments to the waveform discrimination criteria.

Another of his notable patents covers a radio-controlled timepiece that outlines a unique method for control. This watch is equipped with a manual crown for time adjustment and a receiver to capture current time updates via radio signals. It features an internal counter that tracks the passage of time and displays the time through hands that are manually adjusted by the user. The innovation lies in the system's reliance on user intervention for time correction, ensuring that it can seamlessly synchronize with received signals. This method is particularly efficient, relying on specific user actions to maintain accuracy and usability.

Career Highlights

Throughout his career at Seiko Epson Corporation, Eisaku Shimizu has demonstrated exceptional ingenuity and technical skill. His work has significantly influenced the design and functionality of modern timepieces, particularly in harnessing radio signals for precise timekeeping. His patents not only showcase his inventiveness but also reflect the evolving landscape of horological technology.

Collaborations

Eisaku has collaborated with esteemed colleagues, including Kunio Koike and Hidenori Nakamura. Together, they have contributed to the development of innovative technologies that push the boundaries of traditional timekeeping. These collaborations highlight the importance of teamwork and shared vision in advancing science and technology.

Conclusion

Eisaku Shimizu's contributions to the field of horology exemplify the spirit of innovation that drives the industry forward. His 17 patents serve as a testament to his dedication and creativity. As technology continues to evolve, the impact of Shimizu's work will likely inspire future advancements in the realm of timepieces, solidifying his legacy as a pioneer in the field.

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