Katsumi Yamamoto, Tadashi Koyama, Toshio Aono, Toshiro Itaya: Robot controller. Toyoda Koki Kabushiki Kaisha, Oblon Spivak McClelland Maier & Neustadt P C, May 28, 1991: US05020001 (82 worldwide citation)

A robot controller for having a workpiece held by a robot and having the workpiece machined by moving it relative to a stationary tool. The robot controller can control the velocity of relative motion, against the tool, of a machining point on the workpiece. At each teaching point, a transformation ...

Katsumi Yamamoto, Masahiro Fujimori, Masahiro Fujinawa, Sanenobu Sonoda: Method for producing plastic base caps for split cavity type package semi-conductor units. Nitto Electric Industrial, Sughrue Rothwell Mion Zinn & Macpeak, September 21, 1976: US03981074 (29 worldwide citation)

A method for producing a completed base cap for a plastic package sealing a semi-conductor therein includes the steps of forming the initial body of a plastic base cap including a centrally located hollow recess on one side thereof, placing lead frames on said base cap body in such a manner that the ...

Katsumi Yamamoto: Hang-up hair dryer. Yamada Electric, J David Dainow, January 15, 1985: US04493975 (25 worldwide citation)

An electric appliance safety system including a hand-held appliance, a power input for receiving electric current, a two-pole switch for activating the appliance, a power cord connecting the appliance with the switch and a pair of manually operable control elements operatively coupled to the two-pol ...

Katsumi Yamamoto: Image sensor having micro-lenses with integrated color filter and method of making. OmniVision International Holding, Perkins Coie, March 1, 2005: US06861280 (23 worldwide citation)

An image sensor comprising a plurality of pixels formed in a semiconductor substrate, each pixel including a light sensitive element, and a color filter material formed over the light sensitive element, the color filter material formed in a micro-lens shape.


Katsumi Yamamoto: Image sensor having large micro-lenses at the peripheral regions. Hua Wei Semiconductor, Perkins Coie, October 28, 2003: US06638786 (22 worldwide citation)

An image sensor includes an array of pixels formed in a semiconductor substrate. The pixels are grouped as a center portion of pixels and an outer portion of pixels. A first set of micro-lenses is formed over each of the pixels in the center portion of pixels. A second set of micro-lenses is formed ...

Katsumi Yamamoto, Yuichiro Komatsu, Ikurou Hamada: Control apparatus for a grinding machine. Toyoda Koki Kabushiki Kaisha, Oblon Fisher Spivak McClelland & Maier, November 27, 1984: US04484413 (21 worldwide citation)

In a grinding machine having a workpiece drive device for rotating a workpiece about an axis and an infeed device for effecting relative infeed movement between a rotating grinding wheel and the workpiece, a computerized numerical controller is provided with a data input device for inputting a numer ...

Yoichi Uehara, Katsumi Yamamoto: Semiconductor integrated circuit. Hitachi, Reed Smith, April 30, 2002: US06380778 (21 worldwide citation)

Even if duty is shifted to either a state in which an “H” period is long or a state in which an “L” period is long, the duty is recovered to about 50%.

Katsumi Yamamoto, Yuichiro Komatsu, Ikuro Hamada: Numerical controller for a grinding machine. Toyoda Koki Kabushiki Kaisha, Oblon Fisher Spivak McClelland & Maier, February 12, 1985: US04498259 (19 worldwide citation)

In a computerized numerical controller for a grinding machine, various grinding modes in which a plurality of portions on a cylindrical workpiece are respectively ground and plural sets of machining data each for use in machining a corresponding one of the workpiece portions are input by a manual da ...

Shuichi Nakata, Katsumi Yamamoto, Toshio Aono, Shinichi Sugita: Electric control apparatus for industrial robot. Toyoda Koko Kabushiki Kaisha, Oblon Spivak McClelland Maier & Neustadt, January 30, 1990: US04897586 (15 worldwide citation)

An electric control apparatus for an industrial robot the arm of which is actuated to carry out machining of a workpiece by means of a machining tool attached thereto. The control apparatus includes a force sensor arranged to detect reaction force acting on the tool, a memory for memorizing a maximu ...