Location History:
- Yokohama, JP (1983 - 1996)
- Yamato, JP (1996 - 1997)
Company Filing History:
3 out of 614 
3 out of 2,347 
2 out of 499 Years Active: 1983-1997
Title: The Innovative Contributions of Masayoshi Murayama
Introduction
Masayoshi Murayama is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of catalysis, holding a total of 8 patents. His work focuses on the development of advanced catalyst precursors that are essential for various chemical processes.
Latest Patents
Among his latest patents, Murayama has developed a process for producing a vanadium-phosphorus oxide catalyst precursor. This innovative process involves introducing a vanadium alkoxide and a phosphorus compound into an organic solvent, followed by hydrolysis and heating to achieve the desired tetravalent state of vanadium. Another notable patent is for producing a phosphorus-vanadium oxide catalyst precursor, which is crucial for the production of maleic anhydride through the vapor phase oxidation of hydrocarbons. This process utilizes phosphoric acid and a pentavalent vanadium compound in a carefully controlled organic solvent environment.
Career Highlights
Throughout his career, Masayoshi Murayama has worked with leading companies in the chemical industry, including Mitsubishi Chemical Industries Limited and Mitsubishi Chemical Corporation. His expertise in catalysis has positioned him as a key figure in the development of innovative chemical processes.
Collaborations
Murayama has collaborated with notable colleagues such as Masakatsu Hatano and Kenji Shima. These partnerships have further enhanced his research and development efforts in the field of catalysis.
Conclusion
Masayoshi Murayama's contributions to the field of catalysis through his innovative patents and collaborations highlight his importance as an inventor. His work continues to influence advancements in chemical processes and catalyst development.