Location History:
- Tokyo, JP (1980 - 1982)
- Chiba, JP (1986)
Company Filing History:
Years Active: 1980-1986
Title: Koichi Nei: Innovator in Electroconductive Adhesives and Key-board Switching Units
Introduction
Koichi Nei is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of electroconductive materials and electronic components. With a total of 3 patents to his name, his work has had a notable impact on various technological applications.
Latest Patents
One of his latest patents is for an anisotropically electroconductive adhesive. This inventive electroconductive adhesive comprises a resinous matrix, as a dispersing medium of conductive particles, of a polyester-based urethane resin admixed with a masked isocyanate compound as the curing agent. By virtue of the masking of the isocyanate reactivity of the curing agent, the adhesive composition is stable during prolonged storage under hot temperature or high-humidity conditions but can exhibit curing activity when heated to a temperature at which the isocyanate reactivity can be restored.
Another significant invention is the key-board switching unit. This invention provides a novel key-board switching unit used, for example, in pocketable electronic calculators for producing binary-coded signals corresponding to the contacting of movable contact points on the bottom surface of a keyboard covering pad and fixed contact points on the printed circuit board on which the covering pad is mounted when pushed with a fingertip or a pushing means. The printed circuit board in the inventive switching unit has a fine and complicated circuit pattern that, in the prior art, required one or more jumping circuits crossing over a printed base pattern, resulting in increased production costs. In contrast, the circuit pattern on the circuit board may be incomplete by the lack of such jumping circuits, and instead, the covering pad is provided with conductive connections corresponding to the lacking jumping circuits on the circuit board to form necessary jumping circuits when the covering pad is mounted.
Career Highlights
Koichi Nei has been associated with Shin-etsu Polymer Co., Ltd., where he has contributed to various innovative projects. His work has been instrumental in advancing the company's technological capabilities in the field of materials science.
Collaborations
He has collaborated with notable coworkers, including Ryoichi Sado and Toshiyuki Kawaguchi, to further enhance the development of innovative products.
Conclusion
Koichi Nei's contributions to the fields of electroconductive adhesives and electronic components demonstrate his innovative