Company name Mitorika Co., Ltd.
Established June 20, 1965
President Hiroshi Hiranuma
Capital one hundred million yen
Business field Quartz, various glass products, Physical & chemical, Medical, Optical, Semi-conductor, LCD, Optical communication, Automobile, Biography, Decoration etc.
Bank Shoko Chukin Bank, Mito branch
Ashikaga Bank, Mito branch
Joyo Bank, Senba branch
Toho Bank, Mito branch
Mizuho Bank, Mito branch
MUFG Bank, Mito branch
Tsukuba Bank, Izumi branch
Chiba Bank, Tsukuba branch
Mito Yurigaoka factory 909-1, Motoishikawa-cho, Mito-shi, Ibaraki-ken, Japan 310-0843
Mito Keyakidai factory 909-1, Motoishikawa-cho, Mito-shi, Ibaraki-ken, Japan 310-0843
China factory 中国北京市海淀区紫竹院路33号美林花園2-16G
Employees 120(consolidated)
ISO qualification EMS ISO14001
QMS ISO 9001


Jun 1965 Established as "Mitorika Glass Co., Ltd."
Aug 1967 Built new office and factory in Moto Senba and moved HQ
Mar 1979 Built new factory called Katsuta factory in Hitachinaka and started development and production of D2 lamp and Hollow cathode lamp there
Feb 2001 Katsuta factory qualified ISO9001
Jul 2004 Mito Senba factory qualified ISO14001
Feb 2006 Approved as "Excellent company in Mito city"
May 2011 Built new factory in Mito Yurigaoka and moved from Katsuta factory
Nov 2013 Yellow Ribbon Medal awarded to a fire processing technician
Ibaraki governor's prize awarded to a polishing process technician
Mar 2014 Approved as one of "300 SMEs doing best"
May 2015 50th anniversary of founding
Jan 2016 Changed company name to "Mitorika Co., Ltd."
Feb 2017 Mitorika's Helium lamp adopted and delivered to MMT observatory in Arizona, USA
Dec 2017 Approved "Regional Future Leading Company" by the Ministry of Economy, Trade and Industry
Jun 2019 Started sales of Bio CMOS sensor (BCT series)
Nov 2020 Started sales of Electronic Stethoscope (JPES-01)
Mar 2023 Built new factory in Mito Keyakidai

Main customer(In no particular order)

Agilent Technologies
Hitachi High-Tech
Hitachi Group
Thermo Fisher Scientific

National Institute of Advanced Industrial Science and Technology(AIST)
Japan Aerospace Exploration Agency(JAXA)
Japan Atomic Energy Agency(JAEA)
High Energy Accelerator Research Organization(KEK)
National Institute for Materials Science(NIMS)
National Institutes for Quantum and Radiological Science and Technology(QST)
Tokyo University
Kyoto University
Kitasato University
Tokyo Institute of Technology(Tokyo Tech)


Media coverage

  • NHK TV News (many times)
  • TBS TV "Gacchiri Monday !!"
  • Nihon Keizai Shinbun (many times)
  • Ibaraki Shinbun (many times)
  • Nikkan Kogyo Shinbun (many times)

Message from the President

Bridge to the "Bright Future"
Aiming at the company becoming a Bridge to the "Bright Future"

A person who has something bright looks fascinating from inside.
Many people want to be a such person. So do companies. We think it is an important mission for us to support customers with something bright through business activities and products. We would continue to support customers with all four teams of Sales, Production, QA and Administration to make customers' future bright. We are aiming at the company becoming the Bridge to the "Bright Future" of customers.
Thank you for all your kindness and I will greatly appreciate your continuous guidance and encouragement.

Message from the President