This inventor holds 3 USPTO granted patents. Top assignees: Harima Chemicals, Incorporated, Nippondenso Co., Ltd., Denso Corporation. Active years: 1992-1999.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Hyogo, JP (1992 - 1993)
- Kako-gun, JP (1999)
Company Filing History:
3 out of 83 
2 out of 3,252 
1 out of 20,407 
Years Active: 1992-1999
Title: Innovations of Tatsushi Onishi
Introduction
Tatsushi Onishi is a notable inventor based in Hyogo, Japan. He has made significant contributions to the field of soldering technology, holding a total of 3 patents. His work focuses on developing advanced soldering flux compositions that enhance performance and reliability.
Latest Patents
One of his latest patents is a non-washing soldering flux designed to minimize corrosion and insulation defects caused by the precipitation of metal salts and cracking of the base resin. This innovative flux includes an activator composed of a dibasic acid with a molecular weight of 250 or less, along with a monobasic acid with a molecular weight ranging from 150 to 300 and/or a dibasic acid with a molecular weight between 300 and 600. The combination of these components ensures satisfactory solderability while promoting the activity of the flux. Additionally, for improved cracking resistance, the flux incorporates an acrylic resin with a molecular weight of 10,000 or less.
Another significant patent by Onishi is a soldering flux composition that features a modified amine compound as the flux base resin. This compound is created by reacting vinyl group-containing compounds, carboxyl group-containing compounds, and epoxy group-containing compounds with an amine compound that has an active hydrogen. This innovative approach enhances the effectiveness of the soldering process.
Career Highlights
Throughout his career, Tatsushi Onishi has worked with reputable companies such as Harima Chemicals, Incorporated and Nippondenso Co., Ltd. His experience in these organizations has contributed to his expertise in soldering technologies and innovations.
Collaborations
Onishi has collaborated with notable individuals in his field, including Masanori Takemoto and Masami Aihara. These collaborations have likely fostered the exchange of ideas and advancements in soldering technology.
Conclusion
Tatsushi Onishi's contributions to soldering technology through his innovative patents demonstrate his commitment to enhancing the industry. His work continues to influence the development of reliable soldering solutions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile