Company Filing History:
Years Active: 1987-1991
Title: The Innovations of Sumio Manaka
Introduction
Sumio Manaka is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of color chemistry, particularly through his innovative patents. With a total of 2 patents, Manaka has established himself as a key figure in the development of color-forming materials.
Latest Patents
His latest patents include the "Fluoran compound and coloring recording material using it" and "Fluoran compound and color forming record materials using the same." One of his notable inventions, 3-N-isobutyl-ethylamino-7-phenylaminofluoran, serves as a new green color former. This compound is utilized in conjunction with an acidic substance in color-forming record materials, which are essential for pressure-sensitive copying paper, heat-sensitive recording paper, and similar applications.
Career Highlights
Throughout his career, Sumio Manaka has worked with prominent companies such as Nippon Soda Co., Ltd. and Shin Nisso Kako Co., Ltd. His work in these organizations has allowed him to further his research and development in color chemistry.
Collaborations
Manaka has collaborated with several talented individuals in his field, including Tetsuo Igaki and Kimiaki Kinoshita. These partnerships have contributed to the advancement of his innovative projects.
Conclusion
Sumio Manaka's contributions to color chemistry through his patents and collaborations highlight his importance as an inventor. His work continues to influence the development of color-forming materials in various applications.