Location History:
- Ibaraki, JP (1990 - 1993)
- Kagaokakyo, JP (1993)
- Yokohama, JP (1993)
- Nagaokakyo, JP (1994)
Company Filing History:
Years Active: 1990-1994
Title: Keiichi Tsutsui: Innovator in Optical Recording Technology
Introduction
Keiichi Tsutsui is a notable inventor based in Ibaraki, Japan, recognized for his contributions to optical recording technology. With a total of five patents to his name, Tsutsui has made significant advancements in the field, particularly in the synchronization of recording processes.
Latest Patents
One of Tsutsui's latest patents is an optical recording and reproducing apparatus designed for synchronizing recording. This innovative apparatus allows for recording in a position that is properly synchronized with the last pit in a sector, ensuring accuracy in data storage. The apparatus features a recording circuit with a data demodulating circuit that includes a synchronizing signal separating circuit. This circuit outputs a synchronizing signal based on a pit detection signal generated from the recording medium. Additionally, an end pattern detecting circuit is utilized to signal when the end pattern of a sector is detected. Another significant patent is the dual light source optical recording and playback system. This system employs a semiconductor laser as the first light source for recording and a second light source for playback. It includes detection means to monitor the output of the semiconductor laser, which changes in response to reflected return light from the recording medium.
Career Highlights
Throughout his career, Keiichi Tsutsui has worked with prominent companies such as Omron Corporation and Omron Tateisi Electronics Co. His work has been instrumental in developing technologies that enhance the efficiency and reliability of optical recording systems.
Collaborations
Tsutsui has collaborated with notable coworkers, including Kazuo Tsuboi and Koji Sogo, contributing to various projects that have advanced the field of optical technology.
Conclusion
Keiichi Tsutsui's innovative work in optical recording technology has led to significant advancements in the industry. His patents reflect a deep understanding of synchronization and playback systems, making him a key figure in the field.
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.