Location History:
- Kasugai, JP (1988)
- Kobe, JP (1987 - 1990)
- Hyogo, JP (1993 - 1995)
Company Filing History:
3 out of 698 
3 out of 109 
Years Active: 1987-1995
Title: Jun Takada: Innovator in Photoconductive Materials and Photovoltaic Devices
Introduction
Jun Takada is a notable inventor based in Hyogo, Japan. He has made significant contributions to the fields of photoconductive materials and photovoltaic devices. With a total of 6 patents to his name, Takada's work has advanced the technology used in temperature and light detection.
Latest Patents
One of Takada's latest inventions is a photoconductive material that serves as a temperature switch capable of detecting very low temperatures not exceeding 150 K. This invention also includes a light switch material designed for detecting ultraviolet light. The switching material takes advantage of an abrupt change in photoelectric current that occurs during the phase transition of SrTiO.sub.3 at low temperatures. Additionally, the photoelectric switch utilizes changes in the photoconduction spectrum when irradiated with light in the 3 eV-5 eV ultraviolet range. By varying the intensity of the irradiating light, the transition temperature can be controlled.
Another significant invention by Takada is a photovoltaic device, which can be a solar cell or a photosensor. This device features an amorphous silicon semiconductor photosensitive layer, along with a transparent electrode and a rear electrode. The rear electrode is constructed as a multi-layer structure, created through the alternate deposition of metals such as copper, silver, and gold. This innovative design enhances the photoelectric conversion efficiency and reliability of the device.
Career Highlights
Throughout his career, Jun Takada has worked with prominent companies, including Kanegafuchi Kagaku Kogyo Kabushiki Kaisha and Kanegafuchi Chemical Industry Co., Ltd. His experience in these organizations has contributed to his expertise in developing advanced materials and devices.
Collaborations
Takada has collaborated with several talented individuals in his field, including Yoshihisa Tawada and Minori Yamaguchi. Their combined efforts have led to innovative solutions and advancements in technology.
Conclusion
Jun Takada's contributions to the fields of photoconductive materials and photovoltaic devices demonstrate his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving efficiency and reliability in these critical areas.