This inventor holds 62 USPTO granted patents and 2 EPO patents, primarily in Electrophotographic Technology (CPC class 430 ). Top assignees: Ricoh Company, Ltd., Hodogaya Chemical Co., Ltd.. Active years: 1977-2013.
Inventors with similar research interests:
Location History:
- Tokyo, JA (1977 - 1978)
- Tokyo, JP (1978 - 1982)
- Yokohama, JP (1979 - 1984)
- Numazu, JP (1981 - 2012)
- Susono, JP (1984 - 2013)
- Susoso, JP (2012 - 2013)
- Shizuoka, JP (2013)
Company Filing History:
61 out of 28,925 
8 out of 328 
Years Active: 1977-2013
Areas of Expertise:
Title: Innovations by Masafumi Ohta – A Leader in Gallium Phthalocyanine Technology
Introduction
Masafumi Ohta, a notable inventor based in Susono, Japan, has made significant contributions to the field of materials science with a total of 62 patents. His work primarily focuses on gallium phthalocyanine compounds and pigments, which have wide applications in various industries, including electronics and printing.
Latest Patents
Ohta's recent patents showcase his innovative approach to materials. Notable inventions include a gallium phthalocyanine compound and a gallium phthalocyanine composite pigment, along with a method for preparing these pigments. Additionally, he has developed an electrophotographic photoconductor intended to enhance the performance of devices utilizing these materials. One of his key inventions involves an azo compound, which is characterized by a specific structural formula that allows for diverse modifications and potential applications in various fields.
Career Highlights
Ohta has had a distinguished career, working with prominent companies such as Ricoh Company, Ltd. and Hodogaya Chemical Co., Ltd. His innovative mindset and dedication to research have led him to become a significant contributor to advancements in chemical compounds and materials.
Collaborations
Throughout his career, Ohta has collaborated with esteemed colleagues, including Masaomi Sasaki and Mitsuru Hashimoto. These collaborations have played a crucial role in the development of his patented technologies, enabling the cross-pollination of ideas and fostering innovative solutions in the field.
Conclusion
Masafumi Ohta’s extensive patent portfolio exemplifies his commitment to innovation within the realms of gallium phthalocyanine compounds and azo compounds. His contributions continue to influence various industries, solidifying his status as a leading inventor dedicated to advancing technology through creative and practical solutions.