Company Filing History:
3 out of 310 
2 out of 2,861 
1 out of 832,812 Years Active: 1994-2007
Title: Hiroshi Inada: Innovator in Organic Semiconductors
Introduction
Hiroshi Inada is a notable inventor based in Kobe, Japan. He has made significant contributions to the field of organic semiconductors, holding a total of 3 patents. His work focuses on developing materials that enhance the performance and durability of electronic devices.
Latest Patents
One of Inada's latest inventions is the 1,3,5-tris(arylamino)benzenes. This invention provides compounds represented by the general formula (I), where A is a naphthyl, anthryl, or phenanthryl group, and R is either a hydrogen atom or a diarylamino group. These compounds exhibit oxidation potentials in the range of about 0.5-0.6V, demonstrating excellent reversibility in oxidation-reduction processes. They also possess high glass transition temperatures and heat resistance, allowing for the formation of practical organic semiconductor films through coating or vacuum deposition methods. Additionally, these materials can create stable and durable amorphous films that serve as high-performance organic semiconductors at normal temperatures or higher without the need for binder resins.
Another significant patent is for an organic electroluminescent device. This device comprises an organic emitting layer and a hole transport layer, which are laminated together and positioned between a cathode and an anode. The hole transport layer is made from a triphenylbenzene derivative, which provides high heat resistance and conductivity. This innovation improves the durability of the device, enabling it to emit light at high luminance and efficiency when a low voltage is applied.
Career Highlights
Throughout his career, Hiroshi Inada has worked with prominent companies such as Bando Chemical Industries, Inc. and Pioneer Electronic Corporation. His experience in these organizations has contributed to his expertise in the field of organic electronics.
Collaborations
Inada has collaborated with notable individuals in his field, including Takeo Wakimoto and Kunio Imai. These partnerships have likely fostered innovation and advancements in his research and development efforts.
Conclusion
Hiroshi Inada's contributions to organic semiconductors through his patents and collaborations highlight his role as a significant inventor in the field. His work continues to influence the development of advanced electronic devices.