This inventor holds 1 USPTO granted patent. Top assignees: Hitachi Denshi Kabushiki Kaisha, Hitachi, Ltd., Japanese National Railways. Active years: 1978.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 208 
1 out of 42,752 
1 out of 50 Years Active: 1978
Title: Sigeru Ogawa: Innovator in Data Communication Systems
Introduction
Sigeru Ogawa is a notable inventor based in Musahino, Japan. He has made significant contributions to the field of data communication systems, particularly through his innovative patent.
Latest Patents
Ogawa holds a patent for an AC type line concentrator. This invention is designed for use in data communication systems and features a crosspoint switch circuit. The circuit consists of multiple crosspoint switches that can switch an analog signal, allowing a carrier signal modulated by a data signal to be transferred from one of the incoming lines to a selected outgoing line without demodulation.
Career Highlights
Throughout his career, Sigeru Ogawa has worked with prominent companies, including Hitachi Denshi Kabushiki Kaisha and Japanese National Railways. His experience in these organizations has contributed to his expertise in the field of data communication.
Collaborations
Ogawa has collaborated with notable coworkers such as Takashi Kurokawa and Michio Fujiwara. Their collective efforts have further advanced innovations in technology.
Conclusion
Sigeru Ogawa's contributions to data communication systems through his patent and career experiences highlight his role as an influential inventor. His work continues to impact the field significantly.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile