Company Filing History:
7 out of 42,517 
1 out of 18 Years Active: 1989-1994
Title: Sadao Minakawa: Innovator in Spectrophotometry
Introduction
Sadao Minakawa is a notable inventor based in Mito, Japan. He has made significant contributions to the field of spectrophotometry, holding a total of 7 patents. His work focuses on enhancing the capabilities of spectrophotometers, which are essential tools in various scientific applications.
Latest Patents
One of his latest inventions is a sophisticated spectrophotometer designed to extract monochromatic lights from various light sources. This device utilizes spectroscopes to transmit these lights through a sample and detects the transmitted lights using sensors. The innovation includes multiple dispersing elements within the spectroscope, each tailored for different wavelength ranges. Additionally, it features a mechanism for correcting discrepancies in measured values when different dispersing elements or sensors are employed, ensuring accuracy across overlapping wavelength regions.
Career Highlights
Throughout his career, Sadao Minakawa has worked with prominent companies such as Hitachi, Ltd. and Hitachi Instrument Engineering Co., Ltd. His experience in these organizations has allowed him to refine his expertise in optical technologies and instrumentation.
Collaborations
He has collaborated with talented individuals in his field, including Kazunori Hashimoto and Kazuki Torai. These partnerships have contributed to the advancement of his innovative projects and patents.
Conclusion
Sadao Minakawa's contributions to spectrophotometry exemplify his dedication to innovation and excellence in scientific instrumentation. His patents reflect a commitment to improving measurement techniques, which have broad applications in research and industry.