Location History:
- Mie, JP (1989)
- Ami, JP (1982 - 1990)
- Ibaraki, JP (1990)
- Yokkaichi, JP (1993 - 1997)
- Yokohama, JP (1980 - 2010)
Company Filing History:
10 out of 546 
2 out of 28 
1 out of 1 Years Active: 1980-2010
Title: Sadao Kitagawa: Innovator in Resin Molding and Black Liquor Treatment
Introduction
Sadao Kitagawa is a prominent inventor based in Yokkaichi, Japan. He has made significant contributions to the fields of resin molding and environmental treatment processes. With a total of 13 patents to his name, Kitagawa's work reflects a commitment to innovation and sustainability.
Latest Patents
One of Kitagawa's latest patents is a black liquor treatment method. This method efficiently sorts lignin and alkali from alkaline black liquor discharged from the paper manufacturing and pulp industries. By adding acid to the black liquor and adjusting its pH to between 2.5 and 3.5, an aggregating agent is introduced to facilitate the settling of lignin. The black liquor is then separated into lignin and clean water, with ozone gas applied to the clean water for a contact reaction. Another notable patent involves a resin molding that comprises a resin composition with specific proportions of propylene polymers and elastomers. This resin molding is particularly suited for automotive parts, such as bumpers, due to its enhanced properties.
Career Highlights
Throughout his career, Sadao Kitagawa has worked with notable companies, including Mitsubishi Petrochemical Company Limited and the Research Association for Utilization of Light Oil. His experience in these organizations has allowed him to develop innovative solutions that address both industrial needs and environmental concerns.
Collaborations
Kitagawa has collaborated with several professionals in his field, including Yuta Kumano and Isao Okada. These partnerships have contributed to the advancement of his research and the successful implementation of his inventions.
Conclusion
Sadao Kitagawa's contributions to resin molding and black liquor treatment exemplify his dedication to innovation and environmental sustainability. His patents not only showcase his inventive spirit but also highlight the importance of developing solutions that benefit both industry and the environment.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.