Company Filing History:
13 out of 52,730 
1 out of 189 
1 out of 2,916 
Years Active: 1985-1997
Title: The Innovative Genius of Toshiro Usami
Introduction
Toshiro Usami is a notable inventor based in Yokohama, Japan, renowned for his significant contributions to the field of semiconductor technology. With a remarkable portfolio of 14 patents, Usami has developed innovative methods that enhance semiconductor device fabrication.
Latest Patents
Among his latest patents, one stands out for its pioneering approach: the "Method of forming a silicon semiconductor device using doping during deposition." This patent describes a semiconductor device featuring a substrate with a main surface and a laminated structure. The structure comprises a nonmonocrystalline silicon layer and a refractory metal or silicon silicide layer, crucial for achieving low resistivity. The impurity doping during the layer's deposition allows for precise control over the resistivity, setting it to less than 1.0 x 10^-2 Ω·cm.
Another significant patent is the "Method of making a through hole in multi-layer insulating films." This innovative semiconductor device features an electrode wiring structure, designed to facilitate proper electrical connections through a carefully engineered layering process. The inclusion of a silicon nitride layer over the silicon oxide layer effectively prevents unwanted contaminations during the growth of the silicon semiconductor layer, thus enabling a more reliable and controlled conductivity in the electrode wiring layer.
Career Highlights
Throughout his career, Toshiro Usami has made substantial contributions while working with prominent companies such as Kabushiki Kaisha Toshiba and Toshiba Ceramics Co., Ltd. His expertise and innovative mindset helped propel advancements within these organizations, aligning with their goals in the semiconductor industry.
Collaborations
Collaboration has been an integral aspect of Usami's professional journey. He has worked alongside esteemed colleagues, including Yuuichi Mikata and Hiroyuki Kamijo, who have also contributed to the field of semiconductor technology. Their combined efforts have fostered a productive environment for innovation and creativity within the industry.
Conclusion
Toshiro Usami stands as a testament to the spirit of innovation in semiconductor technology. With his 14 patents reflecting his dedication to improving semiconductor device fabrication, he continues to influence the field significantly. His work not only advances technology but also inspires future inventors to explore the realms of what is possible in the world of semiconductors.