Location History:
- Hwaseong, KR (2019)
- Hwaseong-si, KR (2020 - 2023)
Company Filing History:
6 out of 132,080 
5 out of 7,663 
Years Active: 2019-2023
Title: Innovations of Koichi Takei
Introduction
Koichi Takei is a notable inventor based in Hwaseong-si, South Korea. He has made significant contributions to the field of battery technology, holding a total of six patents. His work focuses on advancements in materials and methods for secondary batteries, which are crucial for modern electronic devices and electric vehicles.
Latest Patents
Among his latest patents, Takei has developed a binder that includes a metal salt of a graft copolymer. This polymerization product consists of polyvinyl alcohol, an ethylenically unsaturated carboxylic acid, and a polymerizable monomer with a long-chain alkyl group. Additionally, he has patented a negative active material for lithium secondary batteries, which features an active material core and a polymer layer. This polymer layer is composed of a third polymer that is a cross-linked product of a first polymer, such as polyamic acid or polyimide, and a second water-soluble polymer. The innovative design of these materials enhances the performance and efficiency of secondary batteries.
Career Highlights
Koichi Takei has worked with prominent companies in the technology sector, including Samsung Electronics Co., Ltd. and Samsung SDI Co., Inc. His experience in these leading organizations has allowed him to refine his expertise in battery technology and materials science.
Collaborations
Throughout his career, Takei has collaborated with talented individuals such as Seongho Jeon and Ken Ogata. These partnerships have contributed to the development of his innovative patents and advancements in the field.
Conclusion
Koichi Takei's contributions to battery technology through his patents and collaborations highlight his role as a significant inventor in the industry. His work continues to influence the development of efficient energy storage solutions.