This inventor holds 1 USPTO granted patent. Top assignee: Tokyo Shibaura Denki Kabushiki Kaisha. Active years: 1987.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1987
Title: Shigemi Yamane and Lead Frame Innovation.
Introduction
Shigemi Yamane is an inventor associated with Yokohama, Japan, and Tokyo Shibaura Denki Kabushiki Kaisha. Her work includes a patent for a copper-alloy lead frame designed to combine reliable wire bonding with mechanical strength and cost-effective manufacture.
Latest Patents
The provided information lists one patent for Yamane: “Lead Frame and Method for Manufacturing the Same.” The invention describes a copper alloy containing 0.1 to 1 percent chromium and 0.001 to 0.5 percent zirconium by weight. It also specifies precipitates measuring 0.5 to 50 micrometers, distributed at a density of 1,000 to 10,000 grains per square millimeter.
The manufacturing method uses continuous casting, followed by rolling, solution treatment, cold working, and age-hardening. The resulting lead frame is designed to provide strong bonding performance with gold wire, hardness, and bending strength while remaining inexpensive. Yamane’s listed patent portfolio comprises 1 patent.
Career Highlights
Yamane’s documented contribution focuses on materials engineering and the manufacture of lead frames. The patent’s alloy composition and processing sequence address both performance and production cost.
Collaborations
The supplied information names Shinzo Sugai and Takashi Kuze as Yamane’s coworkers. It does not specify their roles in the patent or the nature of their collaboration.
Conclusion
Shigemi Yamane’s listed invention presents a copper-alloy lead frame designed to balance bonding performance, mechanical strength, and affordability.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile