Location History:
- Takasaki, JP (1980 - 1986)
- Tokorozawa, JP (2000)
Company Filing History:
Years Active: 1980-2000
Title: The Innovations of Hidefumi Ito
Introduction
Hidefumi Ito is a notable inventor based in Takasaki, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 3 patents. His work focuses on improving the manufacturing processes and performance of semiconductor devices.
Latest Patents
One of Ito's latest patents is a method of manufacturing a semiconductor integrated circuit device. This innovative method utilizes a patterned wafer polishing machine for uniformly polishing a surface through chemical mechanical polishing. The machine is equipped with a head that holds the wafer and rubs it against an abrasive surface. A pressure plate with vents is held by the head body, which includes a gas inlet. An elastic film seals the vents on the pressure plate's end face, allowing for effective mechanical polishing of the wafer's patterned side.
Another significant patent involves an insulated gate type field effect semiconductor device and circuit. This invention features a high-power insulated gate type field effect transistor that has a low conductivity region surrounding the drain region. The design includes an offset gate region with an even lower conductivity, tailored to enhance the electric characteristics of the transistor. Additionally, it discloses a combination of P channel and N channel type transistors with similar electric characteristics, along with an audio amplifying circuit utilizing this combination.
Career Highlights
Hidefumi Ito is currently employed at Hitachi, Ltd., where he continues to innovate in semiconductor technology. His work has been instrumental in advancing the capabilities of semiconductor devices, making them more efficient and effective for various applications.
Collaborations
Ito has collaborated with notable colleagues, including Isao Yoshida and Takeaki Okabe. Their combined expertise has contributed to the successful development of innovative technologies in the semiconductor field.
Conclusion
Hidefumi Ito's contributions to semiconductor technology through his patents and work at Hitachi, Ltd. highlight his role as a key innovator in the industry. His inventions continue to influence the development of advanced semiconductor devices, showcasing the importance of innovation in technology.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.