This inventor holds 11 USPTO granted patents. Top assignees: Ashimori Industry Co., Ltd., Tokyo Gas Company Limited, Ashimori Kogyo Kabushiki Kaisha. Active years: 1986-2008.
Location History:
- Settsu, JP (1988)
- Amagasaki, JP (1989 - 1993)
- Osaka, JP (1986 - 2007)
- Hyogo, JP (2008)
Company Filing History:
8 out of 148 
4 out of 193 
2 out of 23 Years Active: 1986-2008
Title: Isaburo Yagi: Innovator in Underground Communication Systems
Introduction
Isaburo Yagi is a prominent inventor based in Hyogo, Japan, known for his significant contributions to the field of underground communication systems. With a total of 11 patents to his name, Yagi has developed innovative methods that enhance the efficiency of laying communication cables in underground pipelines.
Latest Patents
Yagi's latest patents include a method of constructing an information correspondence pipe and a structure for laying communication cables in underground lines. The first patent focuses on providing a construction method for an information-communicable underground pipe, which allows for the easy installation of communication cables within a main pipe and its branches. This method involves inserting a sheath pipe into an underground pipeline through a manhole, ensuring that communication cables can be readily laid. The second patent presents a laying method that enables the installation of optical fiber cables in underground pipelines without placing direct tension or allowing slack, thus eliminating the need for expensive robotic laying operations.
Career Highlights
Throughout his career, Isaburo Yagi has worked with notable companies such as Ashimori Industry Co., Ltd. and Tokyo Gas Company Limited. His work has significantly impacted the way communication infrastructure is developed and maintained in urban environments.
Collaborations
Yagi has collaborated with esteemed colleagues, including Masakatsu Hyodo and Akio Morinaga, contributing to advancements in the field of communication technology.
Conclusion
Isaburo Yagi's innovative patents and career achievements highlight his vital role in enhancing underground communication systems. His work continues to influence the industry and improve the efficiency of communication infrastructure.