Location History:
- Yamaguchi, JP (1998)
- Ube, JP (2010 - 2011)
Company Filing History:
3 out of 1,432 
1 out of 36,713 
Years Active: 1998-2011
Title: Tsutomu Katayama: Innovator in Hydrogen Technology and Laser Welding
Introduction
Tsutomu Katayama is a notable inventor based in Ube, Japan. He has made significant contributions to the fields of hydrogen technology and laser welding. With a total of 3 patents to his name, Katayama's work focuses on developing advanced materials and methods that enhance the performance and efficiency of various applications.
Latest Patents
One of Katayama's latest patents is for a hydrogen tank liner material. This innovative material comprises a polyamide resin composition that includes (A) a polyamide resin at 85-40 wt %, (B) a copolyamide at 5-30 wt %, and (C) an impact-resistant material at 10-30 wt %. The copolyamide is preferably PA6/66, while the impact-resistant material is an acid-modified ethylene/α-olefin-based copolymer. This hydrogen tank liner material exhibits excellent gas barrier properties and superior impact resistance, even at low temperatures. Another significant patent involves a laser welding material and method that effectively welds resin members of different materials with minimal adhesive properties. This method allows for the overlapping of resin members and the application of laser light to achieve strong welds.
Career Highlights
Throughout his career, Tsutomu Katayama has worked with prominent companies such as Ube Industries, Inc. and Toyota Motor Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in his field.
Collaborations
Katayama has collaborated with esteemed colleagues, including Yasuharu Fukui and Seiichi Arakawa. These partnerships have fostered a creative environment that has led to the development of advanced technologies.
Conclusion
Tsutomu Katayama's contributions to hydrogen technology and laser welding demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of material science and engineering, positioning him as a key figure in these industries.