Location History:
- Kobe, JP (1985 - 1986)
- Itami, JP (1988)
- Hyogo, JP (1988 - 1993)
- Hyogo-ken, JP (1997)
Company Filing History:
7 out of 21,351 
3 out of 1,100 Years Active: 1985-1997
Title: Hiroshi Takagi: Innovator in Semiconductor Technology
Introduction
Hiroshi Takagi is a prominent inventor based in Hyogo, Japan. He has made significant contributions to the field of semiconductor technology, particularly in dynamic random access memory (DRAM) and related manufacturing methods. With a total of 10 patents to his name, Takagi's work has had a lasting impact on the industry.
Latest Patents
One of Takagi's latest patents focuses on dynamic random access memory and its manufacturing method. This innovation presents a memory cell structure that reduces the number of bit line contacts, enhancing both integration and reliability of DRAM. Each memory cell consists of a field effect transistor and a capacitor, with a unique combination of gates that optimize performance. Another notable patent involves a semiconductor device with a redundant circuit designed to repair defective circuits. This method ensures that metal shavings from testing do not cause short circuits, thereby improving the reliability of semiconductor devices.
Career Highlights
Throughout his career, Hiroshi Takagi has worked with several notable companies, including Mitsubishi Electric Corporation and Kobe Steel, Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in semiconductor technology.
Collaborations
Takagi has collaborated with several talented individuals in his field, including Masakazu Nakao and Shohei Murakami. These partnerships have contributed to the advancement of technology and the successful development of various patents.
Conclusion
Hiroshi Takagi's contributions to semiconductor technology through his patents and collaborations have established him as a key figure in the industry. His innovative work continues to influence the development of advanced memory technologies.