Location History:
- Osaka, JP (2003 - 2004)
- Settsu, JP (2002 - 2009)
Company Filing History:
6 out of 240 
2 out of 85 
1 out of 2,333 
Years Active: 2002-2009
Title: Tsutomu Harada: Innovator in Magnetic Technology
Introduction
Tsutomu Harada is a notable inventor based in Settsu, Japan. He has made significant contributions to the field of magnetic technology, holding a total of 9 patents. His work focuses on the development of advanced press machines and methods for producing high-quality magnets.
Latest Patents
One of his latest patents is a press machine and method for producing magnets. This innovative press machine includes a die with a through hole that defines a cavity, a first press surface, and a second press surface for pressing a magnetic powder loaded in the cavity. It also features magnetic field generating means for applying an aligning magnetic field to the magnetic powder in the cavity. Notably, at least one of the press surfaces is made of a material with a Vickers hardness higher than 200 but equal to or lower than 450. This design minimizes disturbances in the orientation of the powder during pressing under the aligning magnetic field.
Another significant patent is a production method for permanent magnets and a press device. This method aims to avoid issues caused by remnant magnetization while producing an anisotropic bonded magnet at a reduced cost. It involves feeding a magnetic powder, such as HDDR powder, into the cavity of a press machine and compacting it. A weak magnetic field is created as a static magnetic field in the space including the cavity, using a steadily magnetized magnetic member. This allows the magnetic powder to be aligned parallel to the direction of the weak magnetic field before being compressed in the cavity to obtain a compact.
Career Highlights
Throughout his career, Tsutomu Harada has worked with prominent companies such as Sumitomo Special Metals Co., Ltd. and Neomax Co., Ltd. His experience in these organizations has contributed to his expertise in magnetic technologies and innovations.
Collaborations
He has collaborated with notable coworkers, including Shuichi Okuyama and Takashi Tajiri. Their combined efforts have further advanced the field of magnetic technology.
Conclusion
Tsutomu Harada's contributions to magnetic technology through his patents and collaborations highlight his role as an influential inventor. His innovative approaches continue to shape the industry and inspire future advancements in magnet production.