Location History:
- Tokyo, JA (1977)
- Tokyo, JP (1981 - 1982)
Company Filing History:
Years Active: 1977-1982
Title: The Innovative Contributions of Tsuneo Kuwabara
Introduction
Tsuneo Kuwabara, an accomplished inventor based in Tokyo, Japan, has made significant strides in the field of electronic timepieces. With a portfolio of four patents, Kuwabara's inventive spirit showcases his dedication to enhancing technology and precision in everyday devices.
Latest Patents
Kuwabara's latest inventions include a novel temperature compensating circuit designed for electronic timepieces. This circuit utilizes two piezoelectric resonators that possess distinct frequency-temperature characteristics. The principal resonator features a smaller frequency variation rate in response to temperature fluctuations, while the subsidiary resonator exhibits a higher frequency variation rate. The temperature compensating circuit comprises a variable counter, a gate time setting circuit controlled by both outputs, and a counting mechanism for the major oscillator's output signal. The design improves the accuracy of the timepiece, demonstrating Kuwabara's innovative approach to solving complex problems.
Another noteworthy patent is the AT-Cut quartz resonator, which features specific dimensions that enhance its performance. In this design, the length, width, and thickness of the quartz crystal plate are judiciously selected based on electrical, optical, and mechanical axes. The width-to-thickness ratio ranges from 2.0 to 2.8, and the length-to-thickness ratio is kept under 25. These parameters enable the creation of a miniature AT-cut quartz resonator with high Q-values and excellent frequency-temperature characteristics, showcasing Kuwabara's commitment to precision engineering.
Career Highlights
Tsuneo Kuwabara is associated with Kabushiki Kaisha Daini Seikosha, a prominent company in the electronics sector. His work reflects a blend of creativity and technical skill that has resulted in cutting-edge advancements in timekeeping technology.
Collaborations
Kuwabara collaborates with esteemed colleagues such as Naoyuki Echigo and Shiro Yamashita, contributing to a dynamic research environment that fosters innovation. Their collective expertise enriches the projects they undertake, leading to impactful developments in their field.
Conclusion
Throughout his career, Tsuneo Kuwabara has demonstrated a remarkable ability to innovate within the realm of electronic timepieces. His patents reveal a strong focus on enhancing accuracy and performance, emphasizing the importance of meticulous engineering. As he continues to push the boundaries of technology, Kuwabara's contributions will undoubtedly influence the future of timekeeping devices.