Company Filing History:
1 out of 134 
2 out of 832,680 Years Active: 2002-2005
Title: Tomoaki Shimotsu: Innovator in Optical Technologies
Introduction
Tomoaki Shimotsu is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of optical technologies, holding a total of 3 patents. His work focuses on advanced optical modules and methods that enhance the performance of integrated circuits.
Latest Patents
One of his latest patents involves optical modules and methods of making these modules. This innovation utilizes a sample and hold type phase detector in a Clock Data Recovery (CDR) integrated circuit. The design allows for jitter transfer bandwidth adjustment by inputting VCO output waveforms that are 90° out of phase with each other into the phase detector. This method enables the calculation of jitter transfer bandwidth through the measurement of frequency and DC voltage, facilitating adjustments during DC tests for integrated circuits.
Another significant patent by Shimotsu is related to temperature compensating circuits and logarithm conversion circuits. This invention includes a first circuit network connected to the inverting input terminal of an operational amplifier and a second circuit network linked to a reference potential. The temperature compensating circuit is designed to compensate for temperature-dependent signals inputted into the positive phase input terminal of the operational amplifier, ensuring accurate output of temperature-compensated signals.
Career Highlights
Throughout his career, Tomoaki Shimotsu has worked with various companies, including Opnext Japan, Inc. His experience in the industry has allowed him to develop innovative solutions that address complex challenges in optical technology.
Collaborations
He has collaborated with notable coworkers such as Takayuki Nakao and Akihiro Hayami, contributing to advancements in their respective fields.
Conclusion
Tomoaki Shimotsu's contributions to optical technologies through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry positively, showcasing the importance of innovation in 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.