In the world of advancements and patents, Hiroshi Kishi's name shines bright as a prolific inventor. Hailing from Akita, Japan, Hiroshi Kishi has made significant contributions to the field of quartz glass crucibles. With 34 patents to his name and notable collaborations with renowned companies, Kishi's expertise has revolutionized the manufacturing methods and durability of these essential components.

Patent 1: Quartz Glass Crucible and Manufacturing Method Thereof

One of Hiroshi Kishi's latest patents is a Quartz Glass Crucible and Manufacturing Method Thereof. This invention showcases a cylindrical crucible body made of quartz glass, featuring crystallization-accelerator-containing coating films A and B. These films induce the formation of crystallization accelerator-enriched layers near the crucible body's surfaces during the Czochralski method's silicon single crystal pull-up process. The enduring properties of this innovative design enable it to withstand multiple pulling operations and extend its longevity.

Patent 2: Quartz Glass Crucible

Another remarkable contribution by Hiroshi Kishi is the Quartz Glass Crucible patent. This invention boasts a quartz glass crucible body with a cylindrical side wall, a curved bottom portion, and a corner portion connecting them at larger curvature. The inner surface of the crucible body is coated with film A, which contains a crystallization accelerator and creates compressive stress. Thanks to this design, the crucible achieves high durability during the single crystal pull-up process and reduces the occurrence of pinholes in silicon crystals.

Professional Experience and Collaborations:

Hiroshi Kishi's inventive journey includes collaborations with prominent organizations in the industry. His expertise was instrumental in driving innovation and technological advancements in the field. Notable companies Hiroshi Kishi has worked with include:

1. Sumco Corporation: Hiroshi Kishi contributed substantially to the innovative efforts undertaken by Sumco Corporation. His expertise and patents have undoubtedly shaped the company's progress in the quartz glass crucible realm.

2. Japan Super Quartz Corporation (JSQ): As a key contributor and innovator, Hiroshi Kishi provided invaluable insights and solutions to Japan Super Quartz Corporation. His patents have significantly improved the quality and performance of their quartz glass crucibles.

Colleagues:

Hiroshi Kishi's work was not achieved single-handedly, and he has collaborated with notable colleagues throughout his career. Two key individuals with whom he worked closely are:

1. Toshiaki Sudo: Toshiaki Sudo, an esteemed collaborator of Hiroshi Kishi, has played a pivotal role in the development of their patented innovations. Together, they have contributed to revolutionizing the quartz glass crucible manufacturing industry.

2. Masanori Fukui: Another esteemed colleague, Masanori Fukui, has shared creative endeavors with Hiroshi Kishi. Their combined expertise has resulted in groundbreaking advancements and patents in the realm of quartz glass crucibles.

Conclusion:

Hiroshi Kishi's 34 patents and relentless pursuit of innovation have propelled the field of quartz glass crucibles to new heights. Through his inventions and collaborative efforts with renowned companies and colleagues, Kishi has redefined the manufacturing methods and durability of these crucial components. His contributions continue to shape the industry, paving the way for further advancements in the field of innovative inventions and patents.

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