Wataru Yoshiki

First Major
Master of Science in Engineering
Master of Arts in Business and Commerce
Ph.D. in Engineering
Secondary Major
Graduate School of Business and Commerce
Research Subject

Optoelectronics, optical microdevice

Movie appreciation, Tennis


As my first major research, I have been studying devices for optical telecommunications in the Graduate School of Science & Technology. I found the Program for Leading Graduate School (PLGS) through an introduction by my professor when I took an interest in entering a doctoral course. Since its objective, that was to train all-round type of doctors, sounded attractive, I decided to apply for the program. Although I failed to pass the examination in the spring, I did determine to try again, thanks to an encouragement from my friends, and did pass the examination in the autumn.
In the PLGS, I am studying how the future telecommunication industry should be by taking an advantage of Group project exercise, where I obtain insights into business through discussions with the mentors working in various companies. As my second major master degree, I am now studying at the Graduate school of Business & Commerce. In addition, I can feel that thoughts and methodologies are largely different from those of my first major in this program because students with various kinds of majors such as medicine, politics and arts gather here. I am sure that obtaining the different viewpoints is necessary to correctly understand our today’s complicating society. I regard this program as the place where there are a lot of chances and opportunities to have a wider point of view.

My life as a RA

My schedule on Saturday

I don’t have to get up early because I have already completed the class “communication skills” which starts from 9:00 a.m. on Saturday.
I review and revise the documents for today’s GPE (Group Project Exercise) that I made last night.
After that, I sometimes do e-learning. My recent favorite is “OpenCourseWare” provided by MIT.
Arrive at Hiyoshi Annex Building.
Then, I usually have a lunch with some RAs.
Time for GPE.
I discuss the document that I have prepared with Himori-sensei from NTT (my mentor) and a RA.
I appreciate Himori-sensei for having discussion with me in this period because it is not exactly time for GPE.
The time exactly for GPE.
The third generation of RAs joins us at this period and we have a debate mainly on what theme is suitable for his GPE.
Career Path Lecture.
I am always impressed with diverse and exciting career path lecturers.
I leave Hiyoshi Annex Building and go home with the RA who lives in the same apartment and has the related first major.
I go through very fun time on the way home because we often talk about very exciting topics such as lasers and optical fibers!
I have a dinner with my family.
I enjoy my hobbies, for example, watching movies and tennis games.
I set Saturday night as off-time, and resume my study on Sunday.
After checking the schedule in the next week, I go to bed around 1:00 to 2:00 a.m.


I participated in an oversea internship at San Francisco when I was a 1st year student in the first major master. My host company provided sightseeing information of famous cities all over the world through the web. Although I had difficulty in speaking English with correct grammars and pronunciations during the entire period, I gradually overcame my fear of English conversations. In addition, I obtained my confidence that I would be able to work abroad because I left my creation of contents for Japanese customers, which was an important work for the company. While I felt keenly a necessity to improve my English, I was sure that the working experience in the oversea company was beneficial and would be the first step to become a global person.
As the difference in working styles in US and Japanese companies, I found that working time was greatly different.Nevertheless, my colleagues came late for the starting time of work and left the office at the set-time. I had two lessons from this finding; the first one was that we had to learn their high productivity. The other one was that since a diligence to the job was one of our Japanese identities, we had to think a great deal of it in particular when we worked abroad.

For students

There is probably no place where people with diverse backgrounds (different majors, different institutes (industry, university or government)) gather in a graduate school in Japan except for this program. If you are eager to have a wider point of view and start new things, let’s join our Keio Program for Leading Graduate School!

For Those Who Want to Know More About This Program