Location History:
- Tanashi, JP (2001)
- Tokyo, JP (2003 - 2010)
- Shibuya-ku, JP (2011)
Company Filing History:
4 out of 2,002 
2 out of 450 Years Active: 2001-2011
Title: Isao Kitazawa: Innovator in Analog Electronic Timepieces
Introduction
Isao Kitazawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of analog electronic watches, holding a total of 6 patents. His innovative designs have enhanced the functionality and reliability of timekeeping devices.
Latest Patents
One of Kitazawa's latest patents is an analog electronic watch that features a display unit for showing time with a hand position. This invention includes a stepper motor that drives the hand and a motor drive unit that controls the stepper motor's operation at a predetermined cycle. Additionally, it incorporates hand position detection means to accurately track the hand's position. The invention also features a detection cycle changing unit that adjusts the detection cycle based on specific conditions, ensuring precise timekeeping.
Another notable patent is an analog electronic timepiece designed to prevent time deviation when subjected to impacts. This invention utilizes impact detecting resistors that sense counter electromotive forces generated by the stepper motor during an impact. The signals are amplified and compared against a threshold value to detect impacts. When an impact is detected, a controlling circuit provides a lock pulse to the stepper motor, effectively preventing any deviation in the displayed time.
Career Highlights
Throughout his career, Isao Kitazawa has worked with esteemed companies such as Citizen Watch Company, Ltd. and Citizen Holdings Company, Ltd. His work has significantly influenced the development of reliable and innovative timekeeping devices.
Collaborations
Kitazawa has collaborated with notable individuals in the industry, including Tomio Okigami and Masakazu Ichikawa. These collaborations have contributed to the advancement of technology in the field of electronic watches.
Conclusion
Isao Kitazawa's contributions to the world of analog electronic timepieces have established him as a key figure in the industry. His innovative patents and collaborations have paved the way for advancements in timekeeping technology.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.