1
Masaki Kurihara: Direction-variable speaker system. Clarion, Flynn Thiel Boutell & Tanis, April 10, 1984: US04441577 (38 worldwide citation)

The direction-variable speaker system has first and second speaker cases containing speaker units for different reproduction bands, respectively, and an intermediate case interposed between those two speaker cases. The first speaker case and the intermediate case are connected by a first pivotal sha ...


2
Hiroshi Yamasaki, Yasuhiro Sagara, Kazuaki Shinohara, Hiroshi Nakagaki, Masaki Kurihara, Takaaki Kanai: Process and apparatus for preparing carbon black. Nippon Steel Chemical, Nikaido Marmelstein Murray & Oram, October 19, 1993: US05254325 (25 worldwide citation)

A process for preparing a carbon black which can control the particle size distribution and aggregate size distribution of the carbon black. This apparatus comprises a combustion chamber, a cylindrical throat more contracted than the combustion chamber, which is adapted for forming a plug flow of th ...


3
Eiichi Hazaki, Masaki Kurihara, Kaname Takahashi: Scanning electron microscope. Hitachi, Kenyon & Kenyon, June 11, 2002: US06403968 (23 worldwide citation)

Oil from an oil source is introduced into an inside of a reciprocal oil hydraulic pressure cylinder through a port, and a lock shaft is pushed against a lock plate by the oil pressure to restrict movement of a tilt table. A cylindrical portion made of a material having a large friction coefficient t ...


4
Shoji Futamura, Masaki Kurihara: Electrical discharge machining apparatus with discharge current control. Institute of Technology Precision Electrical Discharge Works, McGlew and Tuttle, January 24, 1989: US04800248 (20 worldwide citation)

A discharge machining apparatus adapted to permit the supply of discharge current to be cut off without increasing electrode consumption. Arrangements are made to gradually increase the level of discharge current, rather than maintaining the current level of discharge pulse. By doing so, electrode c ...


5
Masaki Kurihara, Masao Murai, Akihiro Sakurai, Akiyoshi Kawahara: Electric discharge machining power source unit for electric discharge machine. Fanuc, Staas & Halsey, October 10, 2000: US06130510 (12 worldwide citation)

When a state for electric discharge is established, switching elements T2 and T3 are turned on so that a machining current J0 from a low-voltage auxiliary DC power source (2) flows between a workpiece (W) and a machining electrode (P). Thereupon, an electric discharge machining current J0 sharply ri ...


6
Masaki Kurihara, Toshifumi Honda, Ryo Nakagaki: SEM-type reviewing apparatus and a method for reviewing defects using the same. Hitachi High Technologies Corporation, Antonelli Terry Stout & Kraus, October 6, 2009: US07598490 (11 worldwide citation)

In order to achieve high throughput in a SEM-type defect-reviewing apparatus and method for automatically acquiring images of review defects present on samples, including: a cell comparison step subdivided into the steps of (a) providing a defect detection success ratio or defect detection success m ...


7
Masao Kamiguchi, Masaki Kurihara, Kaoru Hiraga: Controller of wire electric discharge machine. Fanuc, Staas & Halsey, August 21, 2001: US06278075 (9 worldwide citation)

A controller of a wire electric discharge machine monitoring a change in thickness of a workpiece and a current density in real time, promoting a machining speed by preventing occurrence of disconnection of a wire electrode even when the change in the thickness is caused in the workpiece and improvi ...


8
Toshihiko Horiuchi, Hiroaki Kasai, Masaki Kurihara, Takao Konno: Shaking test method and system for a structure. Hitachi, Antonelli Terry Stout & Kraus, April 7, 1998: US05737239 (8 worldwide citation)

A shaking test system for testing a structure including a shaking device for shaking the structure, measuring devices mounted on the shaking device for shaking the structure, external signal input device for inputting data indicative of external force for shaking the structure, as well as other calc ...


9
Toshihiko Horiuchi, Masaki Kurihara, Tomoyuki Hamada, Takao Konno: Vibration testing system. Hitachi, Antonelli Terry Stout & Kraus, July 29, 2003: US06598480 (6 worldwide citation)

A main computer for performing numerical simulation and a sub-computer for controlling each shaking machine are provided. Data transfer between the main computer and sub-computer is performed by communications. The main computer is provided with a model substituting function of modeling a specimen t ...


10
Masaki Kurihara, Toshifumi Honda, Ryo Nakagaki: Method and apparatus for reviewing defects of semiconductor device. Hitachi High Technologies Corporation, Antonelli Terry Stout & Kraus, January 18, 2011: US07873202 (5 worldwide citation)

An apparatus for reviewing defects of a semiconductor device is provided to review a lot of defects in a short period of time thereby to improve the efficiency of defect review. A method for reviewing defects of a semiconductor device includes obtaining an image including a defect on the semiconduct ...