This inventor holds 82 USPTO granted patents and 11 published patent applications and 7 EPO patents, primarily in Optical Communication (CPC class G02B6-4214). Top assignees: Hitachi Metals, Ltd., Ntt Docomo, Inc., Nippon Telegraph and Telephone Corporation. Active years: 1982-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Inventors with similar research interests:
Location History:
- Tokyo-to, JP (2001)
- Takasago, JP (2013)
- Chiyoda-Ku, JP (2005 - 2014)
- Hitachi, JP (2007 - 2018)
- Toyko, JP (2021)
- Tokyo, JP (1982 - 2024)
Company Filing History:
21 out of 2,333 
11 out of 4,953 
9 out of 5,300 
Years Active: 1982-2026
Areas of Expertise:
Title: **Hiroshi Ishikawa: Pioneer in Communication Systems and Optical Technologies**
Introduction
Hiroshi Ishikawa is a prominent inventor based in Tokyo, Japan, known for his significant contributions to communication systems and optical technologies. With an impressive portfolio of 54 patents, Ishikawa continues to be a driving force in innovation within his field.
Latest Patents
Among his latest patents, Ishikawa has developed a communication system and method for operating such systems. This invention enhances the Steering of Roaming (SoR) provisioning during the registration procedure by introducing a new parameter generated by a user data management network function of the home network. This parameter indicates whether roaming networks should request updated SoR information based on the registration type received from a mobile terminal.
Another noteworthy patent is for an alignment method for optical waveguide elements. This method involves several steps, including covering end portions of an optical fiber and a planar lightwave circuit (PLC) with adhesive before curing. It utilizes microlenses to ensure proper optical connection and alignment, showcasing the intricate intersection of mechanics and optics in Ishikawa's work.
Career Highlights
Ishikawa has had a fruitful career with notable organizations such as Nippon Telegraph and Telephone Corporation (NTT) and NKK Corporation. His work in these companies has not only advanced his inventions but has also contributed significantly to the field of telecommunications and optical engineering.
Collaborations
Throughout his career, Hiroshi Ishikawa has collaborated with several talented individuals, including coworkers Kota Shikama and Atsushi Aratake. These partnerships have fostered an environment of innovation and teamwork, driving forward his projects and inventions.
Conclusion
Hiroshi Ishikawa stands out as a leading inventor with a remarkable track record in developing groundbreaking technologies. His patents reflect a deep understanding of the complexities involved in communication systems and optical alignment, making him a significant figure in the engineering landscape of Japan. As he continues to innovate, Ishikawa's work will undoubtedly influence future advancements in these fields.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile