This inventor holds 36 USPTO granted patents and 2 published patent applications and 21 EPO patents, primarily in Organic Electronics. Top assignees: Sumitomo Chemical Company, Limited, Cambridge Display Technology Limited, National Institute of Advanced Industrial Science and Technology. Active years: 1991-2019.
Location History:
- Tsukuba, Ibaraki, 305, JP (2000)
- Ibaraki, 305, JP (2002)
- Tsukuba, JP (1991 - 2018)
- Ibaraki, JP (1998 - 2019)
Company Filing History:
34 out of 6,957 
1 out of 335 
1 out of 1,760 
Years Active: 1991-2019
Areas of Expertise:
Title: Shuji Doi: Innovator in Organic Electronics
Introduction
Shuji Doi is a prominent inventor based in Tsukuba, Japan, known for his significant contributions in the field of organic electronics. With an impressive portfolio comprising 36 patents, his work has greatly advanced the development of semiconducting materials used in various electronic devices.
Latest Patents
One of Shuji Doi's latest patents focuses on "Polymer blends for a semiconducting layer of an organic electronic device." This innovation involves a polymer blend that consists of a first polymer, a different second polymer, and a semiconductor compound, selected from pentacene and thiophene derivatives. This composition ensures a homogenous distribution of the semiconductor compound in the semiconducting layer, which effectively reduces contact resistance, especially for devices with short channel lengths.
Another notable patent is for a "Polymeric light emitting substance and polymer light emitting device using the same." This invention describes a polymeric light-emitting substance characterized by a reduced number-average molecular weight of polystyrene that incorporates a metal complex structure in its backbone. This substance enables the formation of a light-emitting layer through various industrial application methods, including spin coating and inkjet printing, streamlining manufacturing processes.
Career Highlights
Shuji Doi has collaborated with several esteemed organizations throughout his career, including Sumitomo Chemical Company, Limited. His work at Sumitomo has allowed him to explore the potential of polymeric materials in cutting-edge technology, further enhancing the performance and efficiency of organic devices.
Collaborations
Throughout his career, Shuji Doi has worked closely with notable professionals such as Takanobu Noguchi and Toshihiro Ohnishi. Their collaborations have led to innovative advancements in organic electronics, demonstrating the synergy of their expertise.
Conclusion
Shuji Doi's contributions to the field of organic electronics through his numerous patents and collaborations underline his status as a significant inventor. His ongoing research and innovations continue to shape the future of electronic devices, making him a key figure in advancing this dynamic field.