Matsushita

Nakamura S, Senoh M, Nagahama S, Iwasa N, Matsushita I and Mukai T 1999 InGaN/GaN/AIGaN-based LEDs and laser diodes MRS Internet J. Nitride Semicond. Res. 4S1 G1.1... 

Ferrites aHowing for operation at frequencies well above 1 MH2 have also become available, eg, 3F4 and 4F1 (Table 6). Other newer industrial power ferrites are the Siemens-Matsushita N-series (28,97) the TDK PC-series (28,100), and the Thomson B-series (28,103). While moving to higher frequencies, the ferrites have been optimized for different loss contributions, eg, hysteresis losses, eddy current losses, and resonance losses. Loss levels are specified at 100°C because ambient temperature in power appHcations is about 60°C plus an increase caused by internal heat dissipation of about 40°C. 

Jptt Kokai Tokkyo Koho 74 55,733 (1974), T. Nakenishi (to Matsushita Electric Works Ltd). 

Jptt 62,050,186 (March 4, 1987), K. Ogawa (to Matsushita Electric Industrial Company). 

Jptt Kokai Tokkyo Koho 82 16,018 (fan. 27, 1982) (to Matsushita Electric Works, Ltd.). 

S. Matsushita and co-workers. Ini / Radial Oncol Biol Phys. 30, 867 (1994). 

A number of manufacturers started commercial production of nickel—MH cells in 1991 (31—35). The initial products are "AA"-size, "Sub-C", and "C -size cells constmcted in a fashion similar to small sealed nickel —cadmium cells. Table 6 compares the Ovonics experimental cell and a similar sized nickel—cadmium cell. Ovonics also deUvered experimental electric vehicle cells, 22 A-h size, for testing. The charge—discharge of "AA" cells produced in Japan (Matsushita) are compared in Figure 22. 

Commercial literature, Matsushita Battery Co., Seatde, Wash., Oct. 1990. 

Coin and Button Cell Commercial Systems. Initial commercialization of rechargeable lithium technology has been through the introduction of coin or button cells. The eadiest of these systems was the Li—C system commercialized by Matsushita Electric Industries (MEI) in 1985 (26,27). The negative electrode consists of a lithium alloy and the positive electrode consists of activated carbon [7440-44-0J, carbon black, and binder. The discharge curve is not flat, but rather slopes from about 3 V to 1.5 V in a manner similar to a capacitor. Use of lithium alloy circumvents problems with cycle life, dendrite formation, and safety. However, the system suffers from generally low energy density. 

As of this writing, there is Httle commercialization of advanced battery systems. Small rechargeable lithium button cells have been commercialized, however, by Sanyo, Matsushita (Panasonic), and Toshiba. These cells are intended for original equipment manufacturer (OEM) use in appHcations such as memory backup and are not available to the general consumer. 

Jptt Kokai Tokkyo Koho 88 214,353 (Sept. 7, 1988), M. Shibagaki, K. Takahashi, andH. Matsushita (to Japan Tobacco, Inc.). 

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