[Company history]

•1914 - Microscope production begins with MK model<br>

•1917 - Company name changes to Matsumoto Seizousho [“Matsumoto Manufacturing Company”]<br>

•1934 - The limited partnership Matsumoto Seizousho was renamed Tiyoda Seizousho [“Tiyoda Manufacturing Company”]<br>

•1942 - Company name changes to "Chiyoda Optical Industry Co., Ltd."<br>

•1944 Dec 7 - Logo first used<br>

•1957 - Company names changes to “Tiyoda Manufacturing Co., Ltd.”<br>

•1973 Aug 13 - Logo trademark applied for in US, serial no. 72465545<vr>

•1976 - Factory closes<br>

[Production history]

•1914 - MK Production begins<br>

•1934 - MKA, MKQ, MKO, MKM, MKR production begins<br>

•1946 - A (ACM), B BSB , BSE, BSG production begins<br>

•1947 - L-type LCM , LTD , LTG , LTG-mo production begins<br>

•1949 - First production of phase contrast microscopes in Japan begins by Tiyoda<br>

•1950 - Pocket Microscope V- begins<br>

•1954 - Fluorescence microscope apparatus H-200 H-250<br>

•1959 - R (R, R1)<br>

•1965 - nuclear emulsion microscope AI, AII, AIII, CI, CII<br>

•1966 - (B2mo, B2bi) B2<br>

•1966 - remote control device<br>

•1967 - FM 200B, FM-200FTA<br>

•1970 - R21 type Chiyoda microscope (R21bi R21tr)<br>

•1974 - (MT-A, Chiyoda new microscope type MT MT-B )<br>

Sources; <a href="http://www.sakura-finetek.com" target="_blank">Sakura Finetek</a>, <a href="http://www5f.biglobe.ne.jp/~nw-shiraishi/index.html" target="_blank">Employee Shiraishi Kazuharu's site</a>

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