Company Filing History:
3 out of 23 
1 out of 6 
1 out of 3,568 Years Active: 1979-2001
Title: The Innovations of Kunihiko Shiraishi
Introduction
Kunihiko Shiraishi is a notable inventor based in Toyota, Japan. He has made significant contributions to the field of materials used in metal melting apparatuses. With a total of three patents to his name, Shiraishi's work reflects a deep understanding of refractory materials and their applications.
Latest Patents
Shiraishi's latest patents include a taphole blocking material for metal melting apparatuses. This composition comprises a refractory aggregate with a maximum particle size of 5 mm or less, graphite and silicon nitride with a maximum particle size of 0.2 mm or less, a refractory clay, a compatibilized binder mixture including a phenolic resin, a ketone compound, and pitch, along with an organic fine fiber. Another significant patent is a refractory composition for flow casting, which consists of 100 parts by weight of refractory material, 0.1 to 2 parts by weight of sparingly water-soluble aluminum tripolyphosphate, 0.2 to 3 parts by weight of alkali metal silicate, 0.5 to 5 parts by weight of clay, and up to 2/5 part by weight of organic binder per amount of clay, along with hardening promoting reagents.
Career Highlights
Throughout his career, Kunihiko Shiraishi has worked with prominent companies such as Nippon Crucible Co., Ltd. and Teikoku Kako Co., Ltd. His experience in these organizations has allowed him to refine his expertise in refractory materials and their applications in industrial processes.
Collaborations
Shiraishi has collaborated with notable coworkers, including Takuo Hosaka and Ziro Nakano. These partnerships have contributed to the advancement of his research and innovations in the field.
Conclusion
Kunihiko Shiraishi's contributions to the field of refractory materials and metal melting apparatuses are significant. His innovative patents and collaborations highlight his expertise and dedication to advancing technology in this area.