This inventor holds 2 USPTO granted patents. Top assignee: Kabushiki Kaisha Kobe Seiko Sho. Active years: 1983-1989.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Takarazuka, JP (1983)
- Hyogo, JP (1989)
Company Filing History:
Years Active: 1983-1989
Title: Koichi Fujiwara: Innovator in Electromagnetic Stirring Technology
Introduction
Koichi Fujiwara is a notable inventor based in Takarazuka, Japan. He has made significant contributions to the field of metal casting through his innovative patents. With a total of 2 patents, Fujiwara has focused on enhancing the efficiency and effectiveness of continuous metal casting processes.
Latest Patents
Fujiwara's latest patents include a method of electromagnetic stirring in the continuous metal casting process. This method involves electromagnetically stirring molten metal in an unsolidified portion of a continuously cast strand by utilizing a magnetic field created by applying alternating current to at least two exciting coils. The process includes supplying one of the coils with a first alternating current of a frequency between 1-60 Hz, while the other coil receives a second alternating current with a frequency difference of 0.03-0.25 Hz from the first. This innovative approach results in a varying composite magnetic field that induces stirred movement of varying direction and intensity in the molten metal.
Another significant patent is the electromagnetic stirrer designed for use in a continuous steel casting apparatus. This stirrer features a coil assembly that includes a pair of exciting cage coils energized by dual-phase alternating current. Each coil has a hollow conductor that defines a cooling water passage and is arranged in a compact form, enhancing its efficiency in the casting process.
Career Highlights
Fujiwara is associated with Kabushiki Kaisha Kobe Seiko Sho, a company known for its advancements in steel production and technology. His work has contributed to the development of more efficient metal casting techniques, which are crucial for the manufacturing industry.
Collaborations
Fujiwara has collaborated with notable colleagues such as Toshiyasu Onishi and Takao Shiozawa. Their combined expertise has furthered the innovations in electromagnetic stirring technology.
Conclusion
Koichi Fujiwara's contributions to the field of metal casting through his innovative patents demonstrate his commitment to advancing technology in this area. His work continues to influence the efficiency of steel production processes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile