Company Filing History:
Years Active: 1998-2000
Title: Toshiro Kotooka: Innovator in Single-Crystal Manufacturing
Introduction
Toshiro Kotooka is a prominent inventor based in Hiratsuka, Japan. He has made significant contributions to the field of single-crystal manufacturing, holding a total of 4 patents. His innovative approaches have enhanced the quality and efficiency of semiconductor production.
Latest Patents
One of his latest patents is a method and device for manufacturing single crystals. This invention provides a single-crystal manufacturing device that can perform the lifting of single crystals at a high speed. It allows for the production of single crystals with uniform qualities along their axes. The method utilizes a single-crystal manufacturing device equipped with a combination of a heat shield plate and an after-cooler. The heat shield plate surrounds the single crystal being lifted, while the after-cooler helps maintain optimal temperature gradients during the lifting process. This innovation has multiplied the single-crystal lifting speed by a factor of 1.3 to 2.2 compared to conventional methods.
Another notable patent is for a method of fabricating a single-crystal semiconductor. This apparatus and method improve quality control through modifications in the thermal cycle of a pulled single-crystal semiconductor. The design includes a ring after heater capable of elevation, which helps decrease the temperature gradient during the cooling process. This ensures that the quality of the single-crystal semiconductor is maintained throughout production.
Career Highlights
Toshiro Kotooka is associated with Komatsu Electronic Metals Co., Ltd., where he continues to innovate in the field of semiconductor manufacturing. His work has been instrumental in advancing the technology used in producing high-quality single crystals.
Collaborations
He has collaborated with notable coworkers, including Makoto Kamogawa and Toshimichi Kubota, contributing to various advancements in their field.
Conclusion
Toshiro Kotooka's contributions to single-crystal manufacturing have significantly impacted the semiconductor industry. His innovative patents and collaborative efforts continue to drive advancements in technology.