Taking stock of your life
1948　Year	birth	He was born in Hiroshima to parents (both of whom were elementary school teachers) as the youngest of four siblings. He has been described as one of three boys, but it seems he had four siblings: an eldest daughter, an eldest son, a second son, and a third son (himself). He also had an older sister. During the war, there was a food shortage, so his parents gave him rice water instead of milk, but there was no sugar, so he refused to drink it and died of malnutrition at the age of 0.
1961　Year	Middle school years	His father was making a radio at home, and he became interested in it and started acting like a troublemaker.
1964　Year	High school years	I was interested in radio and television, and at the time I was making radios and stereo amplifiers using vacuum tubes. I learned about televisions by going to a junk shop and learning about them from their unused televisions, which were sold for 200 to 500 yen. ・NHK Educational TV has a program called "TV Receiver Repair" that I watch every time, and the station also holds seminars, etc., so I passed the TV repair technician exam. ・Almost every day I would collect parts and tinker with TVs with a soldering iron. ・Although I passed the amateur radio exam, my parents told me to stop my hobby and to stop after the exam.
1967　Year	College years JR60 　Receiver 　  TX88A　Transmitter 　　 TX15S　Transmitter	・He was a good student who commuted to school by train (called "kishin" at the time) every day from his home, with his mother making him a lunch box. ・There was a women's junior college near my school, and there was a cute female college student who got on and off at the same station as me. We got on and off at roughly the same time (or rather, we tried to time it so that we got on and off at the same time) and we were on the same train. ・I started an amateur radio station and restarted my hobby. I started with a 6AR5 end-stage radio that looked like it was for a high school freshman or junior high school sophomore and I started with a 7MHz antenna, stretching wire from a pine tree in the garden to the roof of the barn. At the time, there were magazines about radio and radio construction, and there was also CQ magazine but I mostly subscribed to the above two. ・From manufacturer-made radios, I was able to get TRIO's 9R59/JR60/TX88A, and for mobile I used the 50M TR1000. Next, for SSB radios I used the PSN TX15S series. ・My friends were going out with their girlfriends, and I was also interested in women, so I tried to approach a female college student who was on the same train. It seemed that she was also interested in me, and it turned out that she was a classmate from the same neighborhood. We hadn't been to the same school until high school, so this was our first meeting. ・From that day onwards, I began dating on weekends, hiding it from my parents. ・When I was in the third grade, my brother traded in his car for a new one and gave me his used one, so I drove to school by car until I graduated (the car was a Mazda Familia). ・On days off, I go on car dates with my girlfriend, and I've taken a break from watching TV and listening to radio. On dates, we went to most of the tourist spots in the area, including Mt. Noro, Mt. Washu in Okayama, and Tokiwa Park and Kintai Bridge in Yamaguchi. ・However, one day during a date, they had a collision with a motorcycle. This led to both of their parents finding out about their relationship, but in return, they were given their approval. ・In my fourth year, I had to write my graduation thesis, so I became a little more serious and even got a professional second-class radio operator license. However, the other students around me didn't think it was a big deal and completely ignored me, but with the pass rate at the time, it was quite difficult. ・In the spring of my fourth year, entrance exams began, and everyone around me was being decided. I really wanted to work in the design and development of color TVs, so I applied to work for an electronics manufacturer.
1971　Year	Working adults	・I was able to get into an electronics manufacturer as I had hoped, but I was not able to live in an environment where I could use wireless technology, so I was in a QRT state from then on. ・I was able to join the electronics manufacturer that I had always wanted to work for, but that year there were a lot of new recruits and each factory was very busy and short-staffed. Therefore, the training period was long, and in the name of training, I became a support staff member at each factory. I think my official assignment was decided around autumn, and I was assigned to the color TV design department of the TV division as I had hoped. ・We lived in a dormitory, two people to a room, and my partner was a serious guy from Kansai who was assigned to the design and development department of broadcasting equipment. Every day during the training period, when I returned to the dormitory, I locked my room, put a sign saying "In a meeting" on the entrance door, and read a book on "Transistor Circuits" aloud. I went to ask my senior colleagues and other departments until I understood it, and I even went to the author to ask questions. We set a goal together: to obtain a professional first-class radio engineer license within three years. ・Bowling was popular in the world at that time, and my colleagues would go bowling after work and then stop by a coffee shop on their way home from work. The number of different pastimes and colleagues increased, and the daily study sessions naturally disappeared, and the qualifications I had set as a goal were abandoned. I had friends who liked golf, so I bought golf clubs and started going to the driving range after returning to the dormitory, and I gradually learned to play the game.
1974　Year	Color TV development and design	・When I joined the company, TV manufacturers were working hard to increase the IC ratio, and by increasing the ratio, taxes would go down, so they were working hard. Companies that had semiconductor factories had an advantage, so at that time, more and more companies introduced thick-film IC equipment and began producing dedicated ICs. ・TV cathode ray tubes also developed from 90 degrees deflection to 110 degrees deflection, and then to flat squares. The digital sector introduced remote controls, and eventually microcomputers (4-bit) began to be used.
1976　Year	Research on video disc players	・Each company was researching and prototyping three types: Philips (laser type), RCA (capacitive type), and Telefunken (piezoelectric needle type). At the time, it was considered unsafe to bring lasers into the home, but the Philips type ended up becoming the mainstream and Pioneer made its market debut.
1982　Year	Market debut of CD players Audio equipment design and development	・I returned to the Hiroshima factory and could have commuted from either my parents' house or my wife's parents' house, but my parents' house was the eldest son's, and my wife's parents' house needed renovation for both generations, so we ended up living in company housing. ・Philips had been researching digital audio players (CD players) even before the video disc, and non-contact systems became the norm for audio/video player equipment. Some video disc players in Japan were manufactured and sold as improved versions of the RCA system (VHD system). ・Design and development of audio equipment (amplifiers, tuners, cassette decks, players)
1984　Year	Tape Karaoke Design and Development	・We moved to my wife's parents' house (rehomed), she is the eldest of three daughters, and I essentially became an adopted child. ・Karaoke became popular and sold like hotcakes. At that time, microcomputers were used in each device, such as double decks and 8-track tapes, and various functions were added. At that time, I would take prototype devices to listening rooms and sing karaoke by myself, and get drunk. On weekends, I would take the devices to a nearby bar to test them out.
1987　Year	AV equipment development	・Single and combined audio/video products have made their debut. ・AV amplifiers, various surround sound functions (Dolby Theater Live Stadium, etc.) Each company competed to create their own original IC (gate array), and designers also needed hands-on experience So I enjoyed it at the cinema, at live shows, at baseball games, and at work. ・We discussed the functions (software) of the microcomputers to be installed in each device, and also gathered overnight at a resort with related departments to discuss product concepts. Looking back, those were the most enjoyable times.
1992　Year	Laser disc player design and development	・My wife's parents' house has an environment where amateur radio can be resumed, so I decided to resume radio, which I had been doing QRT since I became a member of society. It has been my long-time dream to build a tower and rotate it with a rotator. I set up a triangular tower in the garden, and as long as it was the same color as the trees in the garden, it was OK, so I built 2.5m units every day and painted them green. ・At that time, I bought a Kenwood TS-950SDX and started with an HF beam antenna, and also prepared UHF. However, I didn't know how to do it, and I got scolded for not knowing that I could send a CQ on the main channel. There were packet communications, and on HF there was Pacter/Amtar and TTY communications, so I tried a lot of different things. ・When I started using radio again, I received complaints that the frequency was off or the sound was strange. I thought that it was a manufacturer's equipment, but I continued to do various things, and there was a group of baby boomer radio users who were unusual and noisy about the sound. There was also a group that was emitting better (faithful) radio waves using the PSN method, and I was drawn to it, and this was the opportunity for me to start making my own. ・We decided to develop and produce laser disc players at the Hiroshima factory. At that time, semiconductor manufacturers did not have LSIs in the new category, and it was time to design and develop LSIs in-house. We produced products for AV and karaoke, and for karaoke, we used DSP to develop voice changers and karaoke scoring functions to differentiate ourselves. We exported a lot of karaoke players to Southeast Asia, and had to make several business trips there due to problems, but we also sang at karaoke stores there many times.
1995　Year	Multimedia design and development	・The development of various players using 12cm optical discs, CDV and CD-Video players, and their short life span was the period before they were replaced by DVDs. ・DVD design and development.
1996　Year	Digital camera design and development	・A few years ago, MD (digital) recorders made their debut in place of cassette tape recorders, and we developed an MD camera (which can also record and play audio) that uses MD discs as a memory medium. ・This production was transferred to the Tochigi Factory, and our group was transferred to Tochigi (single-person transfer), and after developing the Internet Viewcam and several other camera models, we returned to the Hiroshima Factory.
1998　Year	Research on Blu-ray Discs	・He worked on research and development of Blu-ray discs, which were replacing DVDs, between Nara (Tenri Factory) and Hiroshima Factory several times.
2001　Year	Development of Blu-ray disc recorders	・He moved to the Tochigi Factory alone to commercialize the product, debuted the first generation, and then developed the second and third generations along with the development of core products.
2008　Year	Retirement	・He retired after the third generation was introduced.

 

After retiring, I started making my own radios. My parents-in-law used to be farmers, but my father-in-law passed away in 2023. Now, my wife and I live alone, and I am busy working in the fields every day.