This inventor holds 2 USPTO granted patents and 1 published patent application and 2 EPO patents. Top assignee: Shin-Etsu Chemical Co., Ltd.. Active years: 1998-2015.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Annaka, JP (1998)
- Gunma, JP (2015)
Company Filing History:
Years Active: 1998-2015
Title: Hitoshi Nakajima: Innovator in Optical Fiber and Polymerization Technologies
Introduction
Hitoshi Nakajima is a notable inventor based in Gunma, Japan. He has made significant contributions to the fields of optical fiber technology and polymerization processes. With a total of 2 patents to his name, Nakajima's work has had a considerable impact on these industries.
Latest Patents
One of Nakajima's latest patents involves an innovative optical fiber design. This optical fiber comprises a first core, a second core, a third core, and a cladding. The invention specifies parameters for the refractive index differences of the cores and the cladding, ensuring optimal performance. The transmission loss for a wavelength of 1550 nm is designed to be no greater than 0.2 dB/turn when the optical fiber is wound around a mandrel with a diameter of 10 mm.
Another significant patent by Nakajima is a method for removing foam during the polymerization of vinyl chloride polymers. This method includes subjecting vinyl chloride monomer to a suspension polymerization reaction in an aqueous medium. The process effectively eliminates foam generated during polymerization by discharging high-pressure water to the surface of the liquid phase, ensuring a cleaner production process.
Career Highlights
Hitoshi Nakajima is currently associated with Shin-Etsu Chemical Co., Ltd., a leading company in the chemical industry. His work at this company has allowed him to focus on advancing technologies related to optical fibers and polymers.
Collaborations
Nakajima has collaborated with notable coworkers such as Genji Noguki and Takashi Kobayashi. Their combined expertise has contributed to the successful development of innovative technologies in their respective fields.
Conclusion
Hitoshi Nakajima's contributions to optical fiber technology and polymerization processes highlight his role as a significant inventor. His patents reflect a commitment to innovation and improvement in these critical areas of technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile