Location History:
- Matsumoto, JP (1984 - 1985)
- Suwa, JP (1985)
Company Filing History:
4 out of 446 
2 out of 2 
1 out of 1 Years Active: 1984-1985
Title: The Innovations of Masuo Kitano
Introduction
Masuo Kitano is a notable inventor based in Matsumoto, Japan. He has made significant contributions to the field of electronic timepieces, holding a total of four patents. His work focuses on enhancing the functionality and reliability of timekeeping devices.
Latest Patents
One of his latest patents is for an analog electric timepiece. This invention includes circuits designed to avoid misdetection of a non-rotated condition after driving the timepiece stepping motor. It detects voltages induced in the rotor coil by external high-frequency magnetic fields, as well as current produced in the coil by lower frequency AC magnetic fields. When a high-frequency or AC magnetic field of sufficient intensity is detected, the motor is driven with a pulse wider than the normal driving pulse to ensure proper operation. Additionally, a period is provided for detecting AC magnetic fields before applying the normal driving pulse. A comparator or inverter is utilized to determine if external magnetic field levels are sufficient to cause misdetection of rotor position.
Another significant patent is for an electronic analog timepiece with a rotation detection circuit. In this invention, an automatic sequence of events determines the appropriate magnitude of a detection resistor used in series with the motor coil. This resistor helps ascertain whether the rotor is rotated during normal operation. The detection resistor is logically variable and is selected automatically based on the motor's mechanical load at the time of power source activation or when releasing the analog timepiece from a resetting operation. The resistance is integrated into the circuit.
Career Highlights
Masuo Kitano has worked with several companies throughout his career, including Kabushiki Kaisha Suwa Seikosha and Shimauchi Seiki Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in the development of innovative timekeeping technologies.
Collaborations
Some of his notable coworkers include Masahito Yoshino and Jiro Ito. Their collaboration has likely played a role in advancing the projects they worked on together.
Conclusion
Masuo Kitano's contributions to the field of electronic timepieces demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to improving the accuracy and reliability of timekeeping devices.