Location History:
- Katano, JP (1995 - 1998)
- Hirakata, JP (2006 - 2009)
- Osaka, JP (1995 - 2020)
Company Filing History:
17 out of 27,375 
5 out of 16,453 
1 out of 1 Years Active: 1995-2020
Title: Innovations in Solar Technology: The Contributions of Takayuki Negami
Introduction: Takayuki Negami, a prominent inventor based in Osaka, Japan, has made significant strides in the field of solar technology. With a remarkable portfolio of 23 patents, Negami is recognized for his innovative approaches to solar cell design and functionality. His contributions not only enhance the efficiency of solar energy systems but also pave the way for advancements in renewable energy technologies.
Latest Patents: Among his latest inventions, Takayuki Negami has developed a groundbreaking solar cell that features a unique configuration. It consists of a first electrode, a second electrode, and a perovskite photoabsorber layer situated between the two electrodes. Notably, at least one of the electrodes is designed to be light-transmissive. This solar cell incorporates two semiconductor layers—one containing lithium and the other comprising lithium N(SOCF) and poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine]. The specified molar ratio of lithium N(SOCF) to the polymer is crucial for optimizing performance, ranging from 0.15 to 0.26.
Negami's pursuit of efficiency extends to another patent for a solar cell module which includes a first electrode, a hole transport layer with nickel, and an inorganic material layer that features titanium. The light-absorbing layer is a perovskite compound characterized by the formula AMX3, where A denotes a monovalent cation, M a divalent cation, and X a monovalent anion. This innovative layering significantly enhances the solar cell's ability to convert light into electric charge.
Career Highlights: Throughout his career, Takayuki Negami has been affiliated with formidable companies, including Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His work at these institutions has allowed him to develop and refine technologies that are vital for enhancing solar energy utilization.
Collaborations: Collaboration has played a crucial role in Negami's journey as an inventor. He has worked alongside talented colleagues such as Takahiro Wada and Mikihiko Nishitani. Their collective expertise has contributed to the development of cutting-edge technologies and innovative solutions in the renewable energy sector.
Conclusion: Takayuki Negami's relentless pursuit of innovation in solar technology has established him as a noteworthy figure in the field of renewable energy. His patents reflect a deep understanding of materials science and engineering, particularly in the advancement of solar cells. As the world transitions towards sustainable energy solutions, the contributions of inventors like Negami will undoubtedly shape the future of solar energy.