Tomohisa Iba

Title: Innovations of Tomohisa Iba

Introduction

Tomohisa Iba is a notable inventor based in Hyogo, Japan. He has made significant contributions to the field of microcomputers and nonvolatile memory devices. With a total of five patents to his name, Iba's work showcases his expertise and innovative spirit.

Latest Patents

One of Iba's latest patents is a microcomputer with built-in programmable nonvolatile memory. This microcomputer features a flash memory for storing rewriting control firmware and user software. It includes a command register for specifying the content of rewriting control, an address register for rewriting control, and a data register for specifying data to be written. The design also incorporates a power-supply pump circuit in the flash memory and a control signal register for outputting control signals to a memory decoder. The CPU of the microcomputer can access these registers to perform writing or reading operations. By rewriting the control signal register using the rewriting control firmware, processes such as "erase" and "program" of the flash memory can be efficiently executed. This innovation reduces the layout area of an automatic sequence circuit and facilitates changes in the sequence.

Another significant patent by Iba is a nonvolatile semiconductor memory device capable of suppressing the reduction of bit line potential during write-back operations. This device selects a bit line while a word line is in a non-selected state and self-selectively writes back only a cell in an over-erased state on the selected bit line. The write-back operation occurs after the completion of erase verification, ensuring that the current sensitivity of a sense current amplifier is appropriately set.

Career Highlights

Throughout his career, Tomohisa Iba has worked with prominent companies, including Mitsubishi Electric Corporation. His experience in the industry has allowed him to develop groundbreaking technologies that have advanced the field of microelectronics.

Collaborations

Iba has collaborated with notable colleagues such as Kunio Tani and Katsunobu Hongo. Their combined expertise has contributed to the success of various projects and innovations in the field.

Conclusion

Tomohisa Iba's contributions to microcomputers and nonvolatile memory devices highlight his innovative capabilities as an inventor. His patents reflect a commitment to advancing technology and improving efficiency in electronic devices.