This inventor holds 19 USPTO granted patents, primarily in Electronic Timepieces. Top assignee: Kabushiki Kaisha Daini Seikosha. Active years: 1978-1984.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Machida, JA (1978)
- Tokyo, JP (1980 - 1984)
Company Filing History:
Years Active: 1978-1984
Areas of Expertise:
Title: Innovations by Akira Torisawa: Pioneering Electronic Timekeeping Solutions
Introduction: Akira Torisawa, an accomplished inventor based in Tokyo, Japan, holds a remarkable catalog of 19 patents. His innovations have significantly advanced the field of electronic timepieces, including both advanced driver circuits for stepping motors and energy-efficient electronic watches.
Latest Patents: Among his latest patents is the development of an electronic timepiece that features a driver circuit for a stepping motor. This circuit includes a coil, a stator, and a rotor, which works in conjunction with a pulse signal generator to rotationally drive the rotor. The innovation also entails a rotation detection circuit, consisting of switching circuitry that can alternate between high and low impedance loops, thus accurately detecting the rotational states of the rotor based on voltage comparisons.
Another significant patent from Torisawa includes an energy-efficient electronic watch. This design is particularly noteworthy as it addresses power consumption issues related to calendar displays. For about six hours each day, the power required to change the calendar display exceeds that needed for general timekeeping. Torisawa's solution involves applying sufficient pulses to keep the watch motor running during non-calendar change times while incorporating a detection mechanism to address any motor failures.
Career Highlights: Akira Torisawa has made substantial contributions to the technology used in electronic timepieces through his tenure at Kabushiki Kaisha Daini Seikosha. His expertise in designing innovative circuits has established him as a leading figure in this domain, enabling enhanced functionalities in modern watch technology.
Collaborations: Throughout his career, Torisawa has collaborated with talented individuals such as Masaharu Shida and Makoto Ueda. These partnerships have facilitated the exchange of ideas and innovations, leading to the development of cutting-edge timekeeping technologies.
Conclusion: Akira Torisawa's contributions to the field of electronic timepieces through his 19 patents underscore his innovative spirit and technical prowess. His work continues to inspire advancements in the industry, demonstrating the importance of creativity and collaboration in shaping the future of technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile