Location History:
- Fujimi, JA (1976)
- Fujumi, JP (1984)
- Tokyo, JP (1985)
- Saitama, JP (1988 - 1990)
- Minabekawa, JP (1990)
- Wakayama, JP (1990)
- Fujimi, JP (1982 - 1991)
Company Filing History:
13 out of 226 
6 out of 339 
1 out of 52 Years Active: 1976-1991
Title: **Yoshinao Iwamoto: A Pioneer in Optical Innovations**
Introduction
Yoshinao Iwamoto, based in Fujimi, Japan, is an influential inventor known for his significant contributions to optical technologies. With an impressive portfolio of 20 patents, Iwamoto has made notable advancements, particularly in the field of optical fiber communication.
Latest Patents
Among his latest patents, one notable innovation is the **Optical Fiber Cable**. This invention features an optical fiber cable designed with metallic members that have high chemical and electrochemical reactivity, each coated with a protective film. This film serves to prevent direct contact with water that may diffuse into the cable, ensuring greater longevity and performance. The protective coating can be either nonmetallic or a metallic film with low reactivity.
Another significant patent is the **Multi-Point Optical Amplification Repeating System**. This system introduces a novel approach where the output of a unidirectional amplifier in a repeating optical transmission system is branched and coupled to another unidirectional amplifier. This innovation enables bidirectional optical communication across multiple points and can also incorporate a bidirectional amplifier to enhance communication efficiency.
Career Highlights
Yoshinao Iwamoto has had a distinguished career, working with renowned companies such as Kokusai Denshin Denwa Co., Ltd. and Kokusai Denshin Denwa Kabushiki Kaisha. His expertise in optical technologies has allowed him to make substantial contributions to these organizations, helping to drive advancements in telecommunications.
Collaborations
Throughout his career, Iwamoto has collaborated with notable professionals, including Kenichi Asakawa and Yuichi Shirasaki. These collaborations have facilitated the development of innovative optical solutions and have contributed to his extensive list of patents.
Conclusion
In summary, Yoshinao Iwamoto stands out as a prolific inventor in the optical technology domain. His innovative patents, career achievements, and collaborative efforts highlight his valuable contributions to the field of telecommunications. With continued advancements from inventors like Iwamoto, the future of optical communication looks brighter than ever.
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.