Kouichi Iwaisako

Title: Kouichi Iwaisako: Innovator in Conductive Paste Technology

Introduction

Kouichi Iwaisako is a notable inventor based in Uji, Japan. He has made significant contributions to the field of conductive paste compounds, particularly for printed circuit boards. With a total of 4 patents to his name, Iwaisako's work has advanced the technology used in electronic manufacturing.

Latest Patents

Iwaisako's latest patents focus on a conductive paste compound designed for via hole filling in printed circuit boards. This innovative compound includes a conductive filler comprising 80 to 92 weight percent with an average particle size ranging from 0.5 to 20 micrometers. The specific surface area of the filler is between 0.1 to 1.5 m²/g. Additionally, the compound contains a liquid epoxy resin at 4.5 to 20 weight percent, which features two or more epoxy groups and a room temperature viscosity of 15 Pa·sec or less. A hardener is also included at 0.5 to 5 weight percent, ensuring that the viscosity remains at 2,000 Pa·sec or less and the volatile amount is kept below 2.0 weight percent. This conductive paste allows for inner-via-hole connections between electrode layers without the need for a through-hole plating technique. The paste, which comprises metallic particles such as copper, an epoxy resin, and a hardener, is designed to fill holes in laminated substrates effectively. Once applied, the substrate is heated and pressurized with copper foil on both sides, resulting in a printed circuit board that achieves electrical inner-via-hole connections.

Career Highlights

Throughout his career, Kouichi Iwaisako has worked with prominent companies such as Matsushita Electric Industrial Co., Ltd. and Dai-Ichi Kogyo Seiyaku Co., Ltd. His experience in these organizations has contributed to his expertise in the field of conductive materials.

Collaborations

Iwaisako has collaborated with notable colleagues, including Kouji Kawakita and Seiichi Nakatani. These partnerships have likely enriched his work and led to further innovations in conductive paste technology.

Conclusion

Kouichi Iwaisako's contributions to the field of conductive paste compounds have significantly impacted the manufacturing of printed circuit boards. His innovative patents and