Tiyoda Optical Co. Ltd.

千代田

Tiyoda Microscope Database


Home - History of Tiyoda Optical
Company history Production history
•1914 - Microscope production begins with MK model
•1917 - Company name changes to Matsumoto Seizousho [“Matsumoto Manufacturing Company”]
•1934 - The limited partnership Matsumoto Seizousho was renamed Tiyoda Seizousho [“Tiyoda Manufacturing Company”]
•1942 - Company name changes to "Chiyoda Optical Industry Co., Ltd."
•1944 Dec 7 - Logo first used
•1957 - Company names changes to “Tiyoda Manufacturing Co., Ltd.”
•1973 Aug 13 - Logo trademark applied for in US, serial no. 72465545 •1976 - Factory closes
•1914 - MK Production begins
•1934 - MKA, MKQ, MKO, MKM, MKR production begins
•1946 - A (ACM), B BSB , BSE, BSG production begins
•1947 - L-type LCM , LTD , LTG , LTG-mo production begins
•1949 - First production of phase contrast microscopes in Japan begins by Tiyoda
•1950 - Pocket Microscope V- begins
•1954 - Fluorescence microscope apparatus H-200 H-250
•1959 - R (R, R1)
•1965 - nuclear emulsion microscope AI, AII, AIII, CI, CII
•1966 - (B2mo, B2bi) B2
•1966 - remote control device
•1967 - FM 200B, FM-200FTA
•1970 - R21 type Chiyoda microscope (R21bi R21tr)
•1974 - (MT-A, Chiyoda new microscope type MT MT-B )
Sources; Sakura Finetek, Employee Shiraishi Kazuharu's site