This inventor holds 1 USPTO granted patent. Top assignee: Nhk Spring, Ltd.. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Tadashi Tokiwa and Laser Welding Innovation
Introduction
Tadashi Tokiwa is an inventor associated with Yokohama, Japan, and NHK Spring, Ltd. His listed patent concerns laser welding technology and describes a method for preparing a laser medium before welding.
Latest Patents
Tokiwa is credited with 1 patent: “Laser Welding Apparatus and Laser Welding Method.” The invention uses a laser medium, an excitation light source, and a control unit. Before welding the first weld, the control unit supplies preliminary excitation power that is lower than the pulsed drive power and lasts longer than the pulse width. After this preliminary supply period and an interval, the apparatus supplies pulsed drive power to weld the first weld.
Career Highlights
The available information connects Tokiwa’s inventive work with NHK Spring, Ltd. His patent focuses on controlling excitation energy and timing in a laser welding process.
Collaborations
Asato Yamamoto is identified as Tokiwa’s coworker. The provided information does not specify their roles or describe a particular joint project.
Conclusion
Tadashi Tokiwa’s listed patent presents a laser welding approach that uses preliminary excitation before pulsed welding, highlighting his contribution to welding technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile