This inventor holds 4 USPTO granted patents. Top assignees: Sumitomo Electric Industries, Limited, Nippon Telegraph and Telephone Corporation. Active years: 1988-2005.
Location History:
- Kanagawa, JP (1988 - 1997)
- Osaka, JP (2005)
Company Filing History:


Years Active: 1988-2005
Title: Nobumasa Nirasawa: Innovator in Optical Technology
Introduction
Nobumasa Nirasawa is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of optical technology, holding a total of 4 patents. His innovative work focuses on methods of producing synthetic resin products and advancements in optical cable design.
Latest Patents
Nirasawa's latest patents include methods for producing synthetic resin wire and an innovative optical cable manufacturing method. The method for producing a synthetic resin rod involves a unique approach that enhances the efficiency of production. His optical cable patent features a grooved spacer with multiple grooves, where the cutting direction of the grooves is inverted at predetermined intervals. This design allows for the effective accommodation of optical fibers, which are secured by a linear member that is fixed to the grooved spacer. This innovative approach facilitates the extraction of specific optical fibers as needed.
Career Highlights
Throughout his career, Nobumasa Nirasawa has worked with notable companies such as Sumitomo Electric Industries and Nippon Telegraph and Telephone Corporation. His experience in these organizations has contributed to his expertise in optical technologies and synthetic resin applications.
Collaborations
Nirasawa has collaborated with esteemed colleagues, including Akira Nishimura and Hiroaki Sano. Their joint efforts have further advanced the field of optical technology and contributed to the development of innovative solutions.
Conclusion
Nobumasa Nirasawa's contributions to optical technology and synthetic resin production highlight his role as a significant inventor in the industry. His patents and collaborations reflect a commitment to innovation and excellence in his field.