Company Filing History:
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1 out of 1,715 
Years Active: 2000-2015
Title: Haruo Sumizawa: Innovator in Semiconductor Manufacturing
Introduction
Haruo Sumizawa is a notable inventor based in Nagano, Japan. He has made significant contributions to the field of semiconductor manufacturing, holding a total of 2 patents. His innovative methods have advanced the efficiency and effectiveness of semiconductor wafer production.
Latest Patents
Sumizawa's latest patents include a method of manufacturing semiconductor wafers and a polishing machine. The method of manufacturing semiconductor wafers facilitates the formation of orientation flat lines and allows beveling work without problems. This method involves cutting a plurality of small-diameter wafers from a large-diameter semiconductor wafer. It includes a marking step where straight groove-like orientation flat lines are formed by a laser beam, aligning the cutout positions of the small-diameter wafers in rows. Following this, a cutting step is performed to separate the small-diameter wafers from the large-diameter wafer, ensuring the orientation flat lines are positioned correctly.
The polishing machine developed by Sumizawa improves the flatness of workpieces. It features a carrier formed into a thin plate with a through-hole for accommodating a workpiece. An upper polishing plate polishes the upper face of the workpiece, while a lower polishing plate pinches the workpiece and polishes its lower face. A driving mechanism moves the carrier along a circular orbit in a plane without revolving, allowing for effective polishing of both faces of the workpiece.
Career Highlights
Throughout his career, Haruo Sumizawa has worked with prominent companies such as Fujikoshi Kikai Kogyo and Fujikoshi Machinery Corporation. His experience in these organizations has contributed to his expertise in semiconductor technology and manufacturing processes.
Collaborations
Sumizawa has collaborated with notable coworkers, including Yoshio Nakamura and Fuminari Kotagiri. Their combined efforts have furthered advancements in the semiconductor industry.
Conclusion
Haruo Sumizawa's contributions to semiconductor manufacturing through his innovative patents and career achievements highlight his importance in the field. His work continues to influence the industry and pave the way for future advancements.