Location History:
- Nagasaki-ken, JP (1998)
- Nagasaki, JP (1998 - 2005)
- Tokyo, JP (2017 - 2024)
Company Filing History:
5 out of 4,631 
2 out of 1,326 
1 out of 929 
Years Active: 1998-2024
Title: Nobuyoshi Komai: Innovator in Welding Technology
Introduction
Nobuyoshi Komai is a distinguished inventor based in Nagasaki, Japan. He has made significant contributions to the field of welding technology, holding a total of nine patents. His innovative approaches have advanced the methods used in repair welding and fault condition determination.
Latest Patents
One of his latest patents is a repair welding method designed for members where a first end and a second end of a parent material are connected by welding. This method includes a step of removing a portion that encompasses at least part of a first heat-affected zone of an existing welded portion. Following this, repair welding is performed after the removal. In a cross-section that includes the parent material and the existing welded portion, all intersection portions between the first heat-affected zone and a second heat-affected zone due to the repair welding have an intersection angle ranging from 70° to 110°. Another notable patent is a faulted condition determination device and method. This method detects chromium and nickel content in a predetermined boundary region near the boundary between high-strength ferrite steel and weld material in a welded joint. This innovation allows for the appropriate determination of the faulted condition of welding in replacement parts.
Career Highlights
Nobuyoshi Komai has worked with prominent companies such as Mitsubishi Heavy Industries Limited and Mitsubishi Jukogyo Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in welding technologies and innovations.
Collaborations
Throughout his career, Komai has collaborated with notable coworkers, including Fujimitsu Masuyama and Tomomitsu Yokoyama. These partnerships have fostered a collaborative environment that has led to significant advancements in their field.
Conclusion
Nobuyoshi Komai's contributions to welding technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry positively, showcasing the importance of innovation in engineering.