Location History:
- Osaka, JP (1991 - 2007)
- Kawasaki, JP (2007)
Company Filing History:
12 out of 27,375 
1 out of 248 Years Active: 1991-2007
Title: Innovations of Hiroshi Tsutsu
Introduction
Hiroshi Tsutsu is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of display technology, particularly in the development of thin film transistors and organic EL display panels. With a total of 13 patents to his name, Tsutsu's work has had a lasting impact on the industry.
Latest Patents
One of Tsutsu's latest patents is a method for fabricating thin film transistors. This innovative technique involves arranging a number of minuscule LDD thin film transistors with high precision on a substrate for use in liquid crystal display apparatuses and similar devices. The gate electrode serves as a mask during the injection of impurities into the semiconductor layer. To achieve an LDD structure, impurities are injected in two installments, with the size of the gate electrode adjusted according to the length of the LDD regions between the injections. This adjustment is accomplished through metal oxidation or dry etching, with various ideas implemented for precision dry etching of the gate electrode.
Another notable patent is for an organic EL display panel. This panel consists of a substrate, pixel electrodes, a common electrode, signal lines, power supply lines, thin-film transistors, scan lines, organic EL elements, and storage capacitors. To create a full-color image through the light emissions of the organic EL elements, red, green, and blue emitters are patterned correspondingly with the pixel electrodes. These emitters are arranged in such a way that adjacent pairs overlap to define a light-emitting layer overlap region, allowing for the mixing of light components that exit the organic EL elements.
Career Highlights
Throughout his career, Hiroshi Tsutsu has worked with notable companies such as Matsushita Electric Industrial Co., Ltd. and Toshiba Matsushita Display Technology Co., Ltd. His expertise in display technology has positioned him as a key figure in the advancement of innovative display solutions.
Collaborations
Tsutsu has collaborated with several talented individuals in the field, including Tetsuya Kawamura and Yutaka Miyata. These collaborations have contributed to the successful development of various technologies and patents.
Conclusion
Hiroshi Tsutsu's contributions to the field of display technology are significant and impactful. His innovative patents and collaborations have paved the way for advancements in thin film transistors and organic
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.