Location History:
- Hitachi, JA (1977 - 1978)
- Ibaraki, JP (1980)
Company Filing History:
Years Active: 1977-1980
Title: Tetsuo Doi: Innovator in Ink-Jet Printing and Thermal Recording Technologies
Introduction
Tetsuo Doi is a prominent inventor based in Hitachi, Japan. He has made significant contributions to the fields of ink-jet printing and thermal recording technologies. With a total of 4 patents to his name, Doi's work has had a substantial impact on modern printing solutions.
Latest Patents
One of Doi's latest patents is for a nozzle head of an ink-jet printing apparatus with built-in fluid diodes. This innovative design includes an ink reservoir for storing ink, a pump chamber for injecting ink particles, and a fluid diode that prevents reverse flow of ink. This configuration enhances the frequency response of ink particles injected from the nozzle. Another notable patent is for a thermal recording apparatus that records information signals on heat-sensitive media. This apparatus features heat-generating resistance elements and a drive circuit that supplies current in response to information signals, allowing for the creation of visible information on the recording medium.
Career Highlights
Doi is currently employed at Hitachi, Ltd., where he continues to develop cutting-edge technologies. His work has been instrumental in advancing the capabilities of printing and recording devices, making them more efficient and reliable.
Collaborations
Throughout his career, Doi has collaborated with notable colleagues, including Takahiro Yamada and Yasumasa Matsuda. These partnerships have fostered innovation and contributed to the success of various projects.
Conclusion
Tetsuo Doi's contributions to ink-jet printing and thermal recording technologies exemplify his dedication to innovation. His patents reflect a commitment to improving the efficiency and functionality of printing solutions.