Location History:
- Tokyo, JP (1999)
- Uji, JP (2002 - 2003)
- Fukaya, JP (2004 - 2013)
- Mito, JP (2015)
- Hitachinaka, JP (2011 - 2017)
Company Filing History:
7 out of 102 
4 out of 2,028 
4 out of 69 
Years Active: 1999-2017
Title: Innovator Kenji Nakai: Advancements in Battery Technology
Introduction
Kenji Nakai, an accomplished inventor based in Hitachinaka, Japan, has made significant contributions to the field of battery technology. With a total of 15 patents to his name, Nakai has dedicated his career to enhancing the performance and efficiency of battery systems.
Latest Patents
Among his latest innovations, Nakai has developed a groundbreaking battery controller. This device performs current limitations based on the constraints of other components beyond the battery main body and assesses the state of health of the battery. By utilizing allowable average current information, the battery controller adjusts battery current based on previously defined values for various time windows. When the battery experiences deterioration, it effectively utilizes a reduced allowable average current derived from the current state of health. Furthermore, the device ensures that when battery current exceeds a predetermined upper limit, it regulates the current by reducing the limit accordingly.
Another notable invention is his battery control device, which calculates allowable current and power during the charge/discharge cycles of a battery. This device determines these values using the no-load voltage and internal resistance of the battery while dynamically correcting these measurements based on the charge/discharge state.
Career Highlights
Kenji Nakai has worked with prominent companies in the industry, such as Shin-Kobe Electric Machinery Co., Ltd. and Hitachi Automotive Systems, Ltd. Throughout his career, he has consistently driven innovation and delivered solutions that enhance battery performance.
Collaborations
In his professional journey, Nakai has collaborated with talented individuals in the field, including Kensuke Hironaka and Takeshi Nakano. These partnerships have enabled him to merge diverse insights and skills, further enriching his contributions to battery technology.
Conclusion
Kenji Nakai stands out as a leading inventor whose work in battery technology exemplifies innovation and excellence. With his ongoing dedication to creating advanced battery systems and controllers, Nakai continues to shape the future of energy storage solutions.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.