This inventor holds 14 USPTO granted patents and 2 published patent applications and 1 EPO patent. Top assignees: Softbankbb Corporation, Naturedyne Inc., Nec Corporation. Active years: 2001-2021.
Location History:
- Nagano-ken, JP (2011)
- Tokyo, JP (2001 - 2021)
Company Filing History:

Years Active: 2001-2021
Title: Innovations by Keiichi Nakajima in Tokyo, JP
Introduction
Keiichi Nakajima is an innovative inventor based in Tokyo, Japan. He has a remarkable portfolio of 14 patents, showcasing his contributions to advancements in technology and efficiency in various fields. His inventive spirit resonates through his recent inventions, which address pressing needs in plant cultivation and electronic settlement systems.
Latest Patents
Two of his latest patents exemplify his ingenuity and foresight. The first is a **Plant Cultivation Device**, designed to optimize the growing conditions for plants. This device utilizes a water tank that supplies cultivation water to a cultivation tank through an irrigation conduit. The innovative aspect of this invention lies in its ability to suction cultivation water from the tank and utilize a heat-collecting part for sunlight. This dual functionality harnesses both efficiency and sustainability in plant growth.
The second noteworthy invention is an **Electronic Settlement System, Settlement Apparatus, and Terminal**. This system enhances the security and ease of electronic transactions. By allowing a user terminal, like a cellular phone, to wirelessly connect to a synchronizing server, the system enables users to complete transactions without the need to share sensitive personal information such as credit card numbers. This innovation not only streamlines the purchasing process but also prioritizes user security.
Career Highlights
Keiichi Nakajima has made significant strides in his career, particularly during his tenure with Softbankbb Corporation, where he contributed to various technological advancements. His work in this renowned company is reflective of his capability to operate at the forefront of innovation.
Collaborations
Throughout his career, Nakajima has collaborated with various institutions and organizations to bring his inventive ideas to fruition. His collaborations have allowed him to align his technological expertise with practical applications, resulting in patents that not only advance technology but also enrich user experiences in everyday life.
Conclusion
Keiichi Nakajima stands out as a prominent inventor in Tokyo, Japan, with a proven track record of innovative patents that cater to modern needs. His latest inventions in plant cultivation and electronic settlements demonstrate his commitment to addressing real-world challenges. As he continues to innovate, Nakajima's impact on technology and security in transactions may inspire future generations of inventors.