Furumai

Masaki Furumai, Yokohama-Shi JP

Patent application number	Description	Published
20090099797	Method to produce an optical module for analog data transmission - A method to produce an optical module, in particular, a module to transmit an analog data to enhance a yield thereof is disclosed. The method comprises (a) taking an I-L characteristic and its slope efficiency, (b) taking a gradient of a linear approximation between the slope efficiency and a current applied to an LD, and (c) taking an optimum current for the CSO characteristic as varying the current. Steps (a) to (c) give a correlation between the gradient of the linear approximation and the optimum current and are performed in advance to the practical production.	04-16-2009

Patent application number	Description	Published
20110162427	COOLING EQUIPMENT AND COOLING METHOD FOR HOT ROLLED STEEL PLATE - Cooling equipment for a hot rolled steel plate which is arranged on a hot rolling line of a steel plate includes an upper header which supplies cooling water to an upper surface of the hot rolled steel plate; upper cooling water jetting nozzles suspended from the upper header for jetting rod-like water flow; and an upper dividing wall arranged between the hot rolled steel plate and the upper header, wherein a plurality of upper water-supply inlets which allow insertion of lower end portions of the upper cooling water jetting nozzles thereinto, and a plurality of upper drain outlets which drain cooling water supplied to upper surface of the hot rolled steel plate on dividing wall are formed in the upper dividing wall.	07-07-2011

Patent application number	Description	Published
20120017660	STEEL PLATE MANUFACTURING FACILITY AND MANUFACTURING METHOD - A facility is provided for manufacturing a steel plate excellent in steel plate shape and mechanical property while setting low cooling-water spraying performance in a descaling step and achieving uniform cooling in a cooling step. Specifically, a hot rolling mill	01-26-2012