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Seiichiro Tamai

Sumitomo Electric Industries: 11 patents #2,408 of 21,551Top 15%
Overall (All Time): #469,563 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
7411232 Semiconductor photodetecting device and method of manufacturing the same Tetsuzo Ueda 2008-08-12
7208811 Photo-detecting device 2007-04-24
7183581 Optical transmission module for use in high-speed optical fiber communication Shuichi Nagai, Hiroyuki Sakai, Kazuhiro Yahata 2007-02-27
7049969 Liquid detection sensor and liquid detection apparatus 2006-05-23
7031946 Information recording medium, noncontact IC tag, access device, access system, life cycle management system, input/output method, and access method Shinichi Michisaka 2006-04-18
6904068 Semiconductor laser device and multiple wavelength laser light emitting apparatus employing the semiconductor laser device Masaaki Yuri, Kunio Ito, Masaru Kazumura 2005-06-07
6826224 HIGH-POWER SEMICONDUCTOR LASER ARRAY APPARATUS THAT OUTPUTS LASER LIGHTS MATCHED IN WAVELENGTH AND PHASE, MANUFACTURING METHOD THEREFOR, AND MULTI-WAVELENGTH LASER EMITTING APPARATUS USING SUCH HIGH-POWER SEMICONDUCTOR LASER ARRAY APPARATUS Masaaki Yuri, Kunio Ito, Masaru Kazumura 2004-11-30
6556606 HIGH-POWERED SEMICONDUCTOR LASER ARRAY APPARATUS IN WHICH THE WAVELENGTH AND PHASE OF LASER BEAMS FROM SEMICONDUCTOR LASER UNITS ABOVE CAN BE MATCHED THOSE OF LASER BEAMS FROM SEMICONDUCTOR LASER UNITS BELOW, MANUFACTURING METHOD OF THE SEMICONDUCTOR LASER ARRAY APPARATUS AND MULTI-WAVELENGTH LASER EMITTING APPARATUS USING THE SEMICONDUCTOR LASER ARRAY APPARATUSES Toru Takayama, Masaaki Yuri, Kunio Ito, Masaru Kazumura 2003-04-29
5471041 Bar-code reader device Katsushi Inoue, Keiichi Kobayashi, Marie Dosho 1995-11-28
5418357 Bar-code reader permitting selective use of a whole or a part of an image sensor Katsushi Inoue, Keiichi Kobayashi, Marie Dosho 1995-05-23
5349171 Bar code reader Keiichi Kobayashi, Hideki Imai, Takahiro Yamao 1994-09-20