This inventor holds 14 USPTO granted patents and 1 published patent application. Top assignees: Alps Electric Co., Ltd., Alsp Electric Co., Ltd.. Active years: 1998-2005.
Location History:
- Iwaki, JP (1998)
- Fukushima-ken, JP (1999 - 2005)
Company Filing History:
Years Active: 1998-2005
Title: Tsuyoshi Narusawa: Innovator in Key-Switch Technology
Introduction
Tsuyoshi Narusawa is a notable inventor from Fukushima-ken, Japan, recognized for his contributions to key-switch technology. With a total of 14 patents to his name, Narusawa has made significant advancements in the design and functionality of key-switch devices, particularly for miniaturized notebook-size personal computers.
Latest Patents
One of Narusawa's latest patents is a key-switch device designed for miniaturized notebook-size personal computers with reduced thickness. This innovative device features a key-top with retainers on its back surface, and it incorporates first and second levers positioned beneath the key-top. Each lever consists of a base-end part and a pair of opposing arms extending from both ends of the base-end part. The levers are rotatably connected at the center of the arms, allowing for efficient movement. Additionally, the device includes a lever-holding plate that retains the lower ends of the levers and an actuator member that spans between the base-end parts of the levers. The actuator member is designed with a concave slide-retainer-receiving part, which allows for smooth operation and enhanced functionality.
Career Highlights
Throughout his career, Narusawa has worked with prominent companies, including Alps Electric Co., Ltd. His experience in these organizations has contributed to his expertise in developing innovative key-switch technologies.
Collaborations
Narusawa has collaborated with notable coworkers such as Kazutoshi Watanabe and Takayuki Ito, further enhancing his work in the field of key-switch devices.
Conclusion
Tsuyoshi Narusawa's contributions to key-switch technology have made a significant impact on the design of personal computing devices. His innovative patents and collaborations reflect his dedication to advancing technology in this area.