September,
2001

Joined Monitor Group.

September,
2007

Joined Abe, Ikubo & Katayama

December,
2010

Joined DeNA Co., Ltd.

April,
2013

Became executive officer and management and planning general manager of the company.

March,
2014

Became outside director of Riraku (current MEDIROM Healthcare Technologies Inc.).(present post)

August,
2014

Joined Akatsuki Inc. Assumed the position of management and planning general manager.

December,
2014

Became executive officer of the company (retired in June 2022).

April,
1988

Joined Recruit Holdings Co., Ltd.
Assumed the position of general manager of the media produce department and the future course information department, and became manager of the HokkaidoBranch.

2011

Established Recruit Lifestyle Beauty Research Co., Ltd.
Assumed the position of the head of the center.

January,
2015

Established No Track Co., Ltd . and assumed the position of president (present post).

March,
2020

Became outside director of MEDIROM healthcare Technologies Inc. (present post).

1988

Graduated from the School of Medicine, National Defense Medical College.

1988 -

Worked in National Defense Medical College Hospital and Self-Defense Forces Central Hospital.

1990 -

Worked in the Department of Internal Medicine, Japan Self Defense Forces Sapporo Hospital.

1992 -

Worked in the Third Internal Medicine Department, National Defense Medical College Hospital.

1994 -

Worked in the First internal Medicine Department, Self-Defense Forces Central Hospital (director of the internal medicine department since 1998)

1998 -

Department of Clinical Laboratory, the University of Tokyo Hospital

2000 -

Chairperson and Director of Cross Clinic Chiba

2002 -

Vice Director and the Head of Medical Diet Center, Noel Aoyama Clinic

2004 -

Head of Malicia Garden Clinic Anti-Aging Center , Director of Ebisu Anti-Aging Clinic

2007 -

Visiting Associate Professor, Aging Control Course , Graduate School of Medicine, Juntendo University

2008 -

Director, Yokohama Clinic (concurrent post)

2017 -

Chief Medical Officer, MEDIROM Healthcare Technologies Inc.

2019 -

Director, GINZA YOSHIE CLINIC Toritsudai (present post)

March,
1998

Graduated from Graduate School of Engineering Science, Osaka University

April,
1998

Joined Fujitsu Limited

January,
2002

Co-founder / Director, Photocreate Co.,Ltd.

July,
2013

Listing of Photocreate Co.,Ltd. on TSE Mothers

September, 2014

Advisor, Photocreate Co.,Ltd.

October,
2017

Director, Photocreate Taiwan Corp. (present post)

January,
2020

CTO, Be One College Co., Ltd. (present post)

March,
2022

Corporate Auditor, MEDIROM Healthcare Technologies Inc. (present post)

March,
1987

Completed the doctoral program at the graduate school of Tohoku University.

April,
1987

Full-time instructor in the Faculty of Commerce , Meijo University

April,
1991

Assistant Professor, Faculty of Commerce, Meijo University

April,
1993

Assistant Professor, the Faculty of Economics and Business Administration, Aomori Public University

November,
1994

Visiting Researcher, Atkinson Graduate School of Management, Willamette University

August,
1995

Obtained Ph.D. in economics at Tohoku University

April,
1997

Assistant Professor, School of Business, Aoyama Gakuin University

April,
1998

Professor (present post), School of Business, Aoyama Gakuin University

April,
2003

Dean of the College of Economics and Dean of the Graduate School of Business, Aoyama Gakuin University

March,
2013

Assumed the position of auditor at Re.Ra.Ku Inc. (current MEDIROM Healthcare Technologies Inc. (present post).

April,
1974

Entered the Co-ordination Division, Management and Co-ordination Department, Kumamoto Regional Taxation Bureau (national civil service third level (taxes))

March,
1979

Graduated from the Department of Commerce (night course), School of Commerce, Senshu University

July,
1996

Chief Examiner, Second Corporation Taxation Group, Kanda Tax Office

July,
1998

Senior Investigator, Criminal Investigation Department, Tokyo Regional Taxation Bureau

July,
2004

Taxpayer Support Officer, Management and Co-ordination Department, Tokyo Regional Taxation Bureau

July,
2005

Director, Co-ordination Division, Togane Tax Office

July,
2006

Director, Co-ordination Division, Azabu Tax Office

July,
2007

Special Examiner and Chief Examiner, Criminal Investigation Department, Tokyo Regional Taxation Bureau

July,
2010

Senior Tax Counselor, Tax Counsel Office, Management and Co-ordination Department, Tokyo Regional Taxation Bureau

September,
2016

Opened Karyu Tax Accountant Office.

April,
2017

Became outside auditor (present post) of Five Link Co., Ltd.

May,
2018

Outside auditor of MEDIROM Healthcare Technologies Inc. (present post)