Company Filing History:
3 out of 16 
2 out of 2 
1 out of 1 Years Active: 2000-2006
Title: Shuichi Nemugaki: Innovator in Chemical Processes
Introduction
Shuichi Nemugaki is a notable inventor based in Sakaide, Japan. He has made significant contributions to the field of chemistry, particularly in the preparation of specialized chemical compounds. With a total of four patents to his name, his work has advanced the methods of synthesizing important chemical substances.
Latest Patents
Nemugaki's latest patents include a process for the preparation of 5,5'-bi-1H-tetrazolediammonium salts using hydrazine hydrate and dicyan as starting materials. This innovative process maintains a high yield through the use of oxaldiimidic acid dihydrazide (OAH), which is derived from readily available and manageable starting materials. The method involves dissolving OAH in a weakly acidic aqueous solution, adding sodium nitrite to form an azide, and subsequently heating to effect cyclization. The final product is converted into a 5,5'-bi-1H-tetrazoledisodium salt, which is then reacted with ammonium chloride to recover the ammonium salt as sparingly soluble crystals.
Another significant patent by Nemugaki is for the preparation of highly pure 5,5'-bi-1H-tetrazolediammonium salts. This process includes adding a small amount of ammonia water to a reaction solution containing the synthesized salt, followed by the removal of blue insoluble components through filtration. The resulting filtrate is reacted with ammonium chloride to yield highly pure ammonium salt crystals.
Career Highlights
Throughout his career, Shuichi Nemugaki has worked with reputable companies such as Japan Hydrazine Co., Ltd. and Masuda Chemical Industry Co., Ltd. His expertise in chemical processes has been instrumental in the development of innovative solutions in the industry.
Collaborations
Nemugaki has collaborated with notable coworkers, including Shunji Hyoda and Masaharu Kita. Their combined efforts have contributed to advancements in chemical synthesis and innovation.
Conclusion
Shuichi Nemugaki's contributions to the field of chemistry through his patents and collaborations highlight his role as an influential inventor. His innovative processes for synthesizing chemical compounds continue to impact the industry positively.