I have written some articles for Interface magazine (CQ Publishing), "Learning the first self-made CPU with RISC-V and Chisel" (co-author) and "Embedded Rust learning from the basics" (co-author). In my work, I mainly do FPGA logic design, Linux kernel module development, and software development for embedded microcontrollers. My hobbies are programming and electronic work, mainly developing electronic circuits and software for microcontroller modules which have communication functions, such as M5Stack and WioTerminal, and logic design of FPGA.

The first computer I bought was the HP-41C (scientific calculator). My experiences are; Z80, 6502, 6809, 680XX, 80x86, V30, i860, Sparc, MIPS, PicoJava, M16C, M32C, H8, ARM, PowerPC, SH4, NiosII, MicroBlaze, V850 and many others. Languages ; BASIC, Lisp, Forth, Pascal, FORTRAN, C, C++, Smalltalk, Objective-C, HyperTalk, Perl, Java, JavaScript, SQL, Scheme, VHDL, Verilog, C#, Lua, Ocaml, Tcl, Python , Kotlin, Rust, Go and many more, Unix porting, RTOS porting, supercomputer network design, Windows driver development, hardware including FPGA, board design, image processing using GPGPU, compilers, web systems, IoT, and LSI design. I have been writing articles for CQ Publishing since 2000 and has been on his 23rd year.