Location History:
- Yokohama, JP (1980)
- Takasago, JP (1993)
Company Filing History:
2 out of 2,560 
1 out of 2 Years Active: 1980-1993
Title: Innovations by Inventor Hideji Numata
Introduction
Hideji Numata, an accomplished inventor based in Takasago, Japan, has made significant contributions to the field of semiconductor technology and materials science. With a total of two patents registered, Numata's work primarily focuses on enhancing heat treating apparatuses for semiconductors and developing advanced ceramic materials.
Latest Patents
Numata's latest innovations include two noteworthy patents. The first patent pertains to heat treating apparatuses for semiconductors and high purity silicon. This innovation emphasizes the importance of high purity silicon carbide parts, which are composed mainly of α-type silicon carbide and silicon. Notably, the particle sizes of the α-type silicon carbide crystals used in these parts do not exceed 44 μm, and the weight mean particle size ranges from 2 to 25 μm. Additionally, this groundbreaking design ensures that the content of iron as an impurity element in the high purity silicon carbide parts is maintained at levels not exceeding 5 ppm.
The second patent deals with fired ceramic materials possessing dense and low thermal expansion characteristics. This ceramic comprises 0.3 to 8 wt. % of at least one rare earth oxide, achieving a thermal expansion coefficient of less than 0.3% and a porosity of under 10%. The main components of this ceramic include cordierite, lithium aluminosilicates, or aluminum titanate, with the preferred rare earth oxide being Y2O3, alongside options like CeO2 or La2O3.
Career Highlights
Throughout his career, Hideji Numata has worked with prestigious companies such as Asahi Glass Company Limited and Pacific Rundum Company Ltd. His innovative spirit and dedication to research have earned him recognition in the industry and contributed to advancements in ceramic and semiconductor technologies.
Collaborations
Numata has collaborated with notable coworkers, including Takuro Ono and Hiroji Sakemi. These partnerships have enriched his projects, showcasing the power of teamwork in driving pioneering innovations.
Conclusion
As a prominent inventor, Hideji Numata continues to influence the fields of semiconductor technology and materials science through his patents and collaborations. His contributions reflect a commitment to excellence in innovation, positioning him as a key figure in the realm of advanced manufacturing and material development.