Company Filing History:
2 out of 5 
1 out of 2 Years Active: 1992-1994
Title: Kazutomo Isono: Innovator in Clean Room Technology
Introduction
Kazutomo Isono is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of clean room technology, holding 2 patents that showcase his innovative approach to constructing and arranging clean environments.
Latest Patents
Isono's latest patents include a ceiling-frame construction method and a ceiling-frame structure for clean rooms. The ceiling-frame construction method is characterized by the formation of several divisional frame units, each designed to support a filter unit. These divisional frame units are strategically positioned at the ceiling of the clean room, and the ceiling frame is created by connecting the abutting frame members of these units. This method ensures that the divisional frame units are securely hung from the ceiling using hangers applied at their abutting portions. His clean room arrangement patent describes a system where clean air is introduced into the upper portion of the clean room, flows downward, and is expelled from the lower portion. An air recirculation passage connects the upper and lower portions, with a heat source generating an ascending flow of air, promoting natural convection within the clean room.
Career Highlights
Kazutomo Isono has worked with prominent companies such as Asahi Kogyosha Co., Ltd. and Nippon Donaldson Ltd. His experience in these organizations has allowed him to refine his skills and contribute to advancements in clean room technology.
Collaborations
Isono has collaborated with notable colleagues, including Shigehisa Yamaguchi and Yoshiaki Kashiwase. Their combined expertise has further enhanced the development of innovative solutions in the clean room sector.
Conclusion
Kazutomo Isono's work in clean room technology exemplifies his commitment to innovation and excellence. His patents reflect a deep understanding of the complexities involved in maintaining clean environments, making him a valuable contributor to the field.