Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Sharp Kabushiki Kaisha Corporation

Hitachi Construction Machinery Co., Ltd.

Jsr Corporation

Waseda University

Kcm Corporation

Photoscience Incorporated

Atsushi Nakamura

Takashi Ishida

Mamoru Shoji

Shigeru Furumiya

Junichi Minamino

Hiromichi Ishibashi

Toyoji Gushima

Motoshi Ito

Hiroshi Ueda

Takeshi Nakajima

Yoshikazu Yamamoto

Yasumori Hino

Makoto Usui

Hironori Deguchi

Kenji Koishi

Naoyasu Miyagawa

Isao Kobayashi

Shin-ichi Kadowaki

Shunji Ohara

Kenji Fujiune

Shinichi Konishi

Harumitsu Miyashita

Tetsuya Akiyama

Kenichi Nishiuchi

Kenji Narumi

Shigeaki Furukawa

Mitsuaki Oshima

Hiroyuki Ishii

Seiji Nishiwaki

Yuji Takagi

Hideshi Ishihara

Hiroshi Yoshida

Toru Kimura

Shinichiro Hayashi

Yukio Nishimura

Takahiro Nagai

Teruhito Ohnishi

Takashi Yumiba

Hiroki Nakagawa

Shuichi Tasaka

Shin-ichi Yamada

Hiroaki Nemoto

Yuji Hisakado

Kohji Minami

Yoshiharu Kobayashi

Kiyotaka Ito

Tomoyasu Takaoka

Masafumi Yamamoto

Kouichi Takamine

Toshiya Akagi

Takashi Chiba

Koji Shimazaki

Norito Fujihara

Takeshi Kokura

Motoyuki Shima

Itaru Murui

Mitsumasa Mizuno

Tomohiro Utaka

Masaru Ogawa

Yukihiro Yamasaki

Takuya Kagawa

Hiroyuki Tadano

Masao Kanazawa

Takeshi Hasegawa

Katsuo Aizawa

Takayuki Sota

Tadashi Jahana

Ariaki Ito

Kenji Okada

Masataka Kanda

Yasuhiro Honda

Kouhei Nakata

Akiko Kobayashi

Tamon Iden

Keisuke Naitou

Mototaka Katayama

Shin-Ichi Kadowaki

A torque transmission mechanism includes a magnet coupling including a driving magnet member coupled to a side of driving shaft driven into rotation by a motor and a driven magnet member coupled to a side of an output shaft on which a front-end tool is attachable. A clutch mechanism is provided between the motor and the torque transmission mechanism. A moment of inertia on the side of the driven magnet member is larger than a moment of inertia on the side of the driving magnet member.

Electric power tool

A mark corresponding to recording data is formed on an optical disk by: encoding the recording data in accordance with a modulation code and generating encoded data; classifying the encoded data by a combination of at least two of a mark length of a mark, a space length of a preceding space, the mark length of a preceding mark, and the space length of a succeeding space; setting a correction amount for adjusting the position of the start edge and the end edge of a recording pulse based on an evaluation index of a decoding result, which is a result of decoding a reproduction signal of the encoded data, for each of the classification; and generating the recording pulse corresponding to the encoded data by using the correction amount corresponding to the classification of the run length of the encoded data.

Optical disk recording method, optical disk device, and integrated circuit

A construction machine includes: an engine driving at least one hydraulic pump configured to supply operating oil to a hydraulic actuator; an exhaust adjustment mechanism adjusting a flow rate of exhaust from the engine; and a control device controlling the exhaust adjustment mechanism. The control device determines whether or not a first downhill traveling condition and/or a second downhill traveling condition are/is satisfied. When at least one of the first downhill traveling condition and the second downhill traveling condition is satisfied, the control device controls the exhaust adjustment mechanism such that the exhaust adjustment mechanism executes exhaust brake.

Construction machine

A work vehicle includes: a main hydraulic pump that supplies pressure oil to a hydraulic cylinder; an accessory pump that supplies pressure oil to an auxiliary machine; and a confluence switching valve that merges pressure oil of the accessory pump with pressure oil of the main hydraulic pump. The work vehicle is provided with a control device that, in case atmospheric pressure or air density of outside air is lower than a predetermined value, executes confluence limitation control of reducing a confluence flow rate at the confluence switching valve compared to the time in case the atmospheric pressure or the air density of the outside air is higher than the predetermined value, and canceling the confluence limitation control in case rotation speed of an engine becomes higher compared to a predetermined rotation speed value during the confluence limitation control, and the rotation speed value is higher as the atmospheric pressure or the air density of the outside air is lower.

Work vehicle

A work vehicle has a hydraulic source; a control valve that controls a flow of the hydraulic oil discharged from the hydraulic source; and an engine starting device for starting an engine, in which a control device has: a low-temperature state determination unit that determines whether a temperature state of a working fluid of a torque converter is a low-temperature state; and a clutch control unit that when it is determined by the low-temperature state determination unit that the temperature state of the working fluid is not the low-temperature state, controls the control valve in order to switch a lock-up clutch to a non-engagement state, and when it is determined by the low-temperature state determination unit that the temperature state of the working fluid is the low-temperature state, controls the control valve in order to switch the lock-up clutch to a engagement state.

An artificial sunlight radiation device () includes a xenon light source (), a condensing element (), a tapered coupler (), an optical filter (), a light guide plate (), a light extracting member (), and a side-surface reflection member () that is provided at one or more side end surfaces of the light guide plate (), reflects a portion of the light output from the light guide plate (), and directs the portion of the light toward a radiation surface.

Artificial sunlight radiation device

When the power of the write pulse is taken as the peak power and the power of the bottom pulse is taken as the bottom power, the power setting device () sets the power of each pulse in the recording pulse train such that the peak power PwN of the Nth information layer which is closest to the light entry surface of the optical recording medium (), the bottom power PbN of the Nth information layer, the peak power PwM of the Mth information layer (where M is an integer such that N&#x3e;M&#x2267;1), and the bottom power PbM of the Mth information layer satisfy the following formula:

Optical information recording device, optical information recording method and optical information recording medium

The present invention provides a light source device for emitting concentrated light, which is prepared by concentrating light emitted from a light source, including: the light source; a reflective box in which the light source is provided; a plurality of light guides having a circular column shape or a polygonal column shape and having two end surfaces being different in area; and light separating means, the reflective box having a plurality of openings, each opening being provided with one of the light guides in such a way that the end surface smaller in area faces the light source, and each light separating means being provided at a position between the adjacent ones of the openings. With this, a small-sized light source device for emitting light with high output and high directivity, and a simulated solar light irradiation device including the same are provided.

Light-source device and simulated-solar-light irradiation device provided with same

An optical disc drive having an optical pickup head emitting a light beam to an optical storage medium, detecting the light beam reflected from the optical storage medium, and outputting a signal based on the received reflected light, having a jitter measuring unit measuring jitter in signals output from the optical pickup head and having an evaluation unit determining from the measured jitter if the optical storage medium is good or defective. The jitter measuring unit measures jitter in a train of 3T or longer marks or spaces from an optical storage medium to which digital information is recorded as a train of marks or spaces of length kT based on a period T and an integer k of two or more.

Optical disc drive, optical storage medium, optical storage medium inspection apparatus, and optical storage medium inspection method

A recording wavelength generator selects control parameters of a recording pulse sequence, based on combinations of mark length, a first space length of a first space immediately before the mark, and a second space length of a second space immediately after the mark. A laser drive circuit records the marks by the recording pulse sequence. The first and second space lengths are classified into m and n types, respectively. An absolute value of a difference between two predetermined control parameters from among (m&#xd7;n) control parameters selected during recording on a second information layer located on an incidence side of the laser beam with respect to a predetermined first information layer from among N information layers is equal to or greater than an absolute value of a difference between two predetermined control parameters from among the (m&#xd7;n) control parameters selected during recording on the first information layer.

Optical information recording method, optical information recording device, optical information reproduction method, optical information reproduction device, and optical information recording medium

An information recording medium includes a track on which a data sequence is recordable, and at least one of a PIC area in which a recording condition for recording the data sequence on the track is recorded. The recording condition includes a parameter for adjusting a position of a trailing end of a cooling pulse in a recording pulse waveform for forming the recording mark. The parameter is classified using a combination of a length of the recording mark, a length of a first space located adjacently previous to the recording mark and a length of a second space located adjacently subsequent to the recording mark. A recording apparatus is provided for recording a data sequence on an information recording medium based on the recording condition recorded on the information recording medium. An evaluation apparatus is provided for evaluating an information recording medium having the recording parameter recorded thereon.

Information recording medium having recording condition for adjusting the position of cooling pulse

An optical information storage medium according to the present invention has at least one information storage layer. The optical information storage medium has a management area that stores at least one unit containing control information about the optical information storage medium. The control information includes a format number, which provides information about at least a write strategy type and a write pre-compensation type, and a write strategy parameter, which provides information about the magnitude of shift in an edge position, or variation in the pulse width, of a write pulse train to form a recording mark. And the value of the format number changes according to a combination of the write strategy type and the write pre-compensation type.

Optical information recording medium, information recording apparatus, information reproducing apparatus, information recording method, information reproducing method and method for producing optical information recording medium

An optical recording method includes the steps of: encoding record data to generate encoded data which is a combination of marks and spaces; classifying the encoded data according to a combination of a mark length of the mark, a space length of a first space that immediately precedes the mark, and a space length of a second space that immediately succeeds the mark; generating a write pulse train for forming the mark, in which at least one of a leading end edge position, a trailing end edge position and a pulse width of the write pulse train is changed according to a classification result; and irradiating the optical disc medium with the write pulse train generated to form the plurality of marks on the optical disc medium.

Optical recording method, optical recording device, master medium exposure device, optical information recording medium, and reproducing method

A method for inspecting an optical information storage medium includes the steps of: irradiating the storage medium with a laser beam and rotating the medium by a constant linear velocity control technique by reference to the radial location at which the laser beam forms a spot on the medium; changing the rotational velocities according to the radial location on the medium between at least two linear velocities that include a first linear velocity Lvand a second linear velocity Lvhigher than the first linear velocity Lv; generating a focus error signal and/or a tracking error signal based on the light reflected from the medium; performing a focus control and/or a tracking control on the laser beam that irradiates the medium based on the focus and/or tracking error signal(s); and passing the branched outputs of control loops for the focus and/or tracking error signal(s) through predetermined types of frequency band-elimination filters for the focus and/or tracking error signal(s) to obtain residual errors of the focus and/or tracking error signal(s) and comparing the residual errors to predetermined reference values.

Method for inspecting optical information recording medium, inspection apparatus, optical information recording medium and recording method

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Osaka, Japan

Atsushi Nakamura