Panasonic Corporation

Hitachi Zosen Corporation

Matsushita Electric Industrial Co., Ltd.

Takara Belmont Corporation

Keiji Ito

Isao Kidoguchi

Hiroyoshi Yajima

Takashi Fujita

Yukihiro Terada

Takenori Abe

Kiminori Mizuuchi

Yasuo Kitaoka

Akihiko Ishibashi

Yoshiaki Hasegawa

Toru Takayama

Osamu Imafuji

Kouji Makita

Takayuki Kashima

Yuji Kakuya

Norimasa Okuzaki

Hajime Mizutani

Tomofumi Horio

Koji Yamane

Hironori Mitsui

Masakazu Katsumata

Tomoaki Tadaka

A light source of the present invention includes: a semiconductor light emitting device which has a light emitting face and emits light from part of the light emitting face; a container which has a light transmitting window for transmitting the light and accommodates the semiconductor light emitting device; and a gettering portion for performing gettering of a material containing at least one of carbon and silicon. The gettering portion is positioned, in the container, in a region other than the part of the light emitting face of the semiconductor light emitting device.

Light source, optical pickup, and electronic apparatus

A positioning system wherein radio waves from a GPS satellite () are received by a reference station (), the absolute position of which is already known, and a plurality of mobile stations () to perform relative positioning among particular stations, thereby determining the positions of the mobile stations (). At least one of the mobile stations () is disposed such that a baseline limit length allowing relative positioning relative to the reference station () is exceeded, and the intervals between particular mobile stations () are shorter than the baseline limit length allowing relative positioning. Each of the stations () is equipped with a GPS receiver () that receives the radio waves from the GPS satellite (), and further equipped with a wireless communication apparatus () that transmits/receives data to/from a particular station. There are provided a relative position calculation part () for calculating the relative position between the particular stations; and an absolute position calculation part () for determining, based on an absolute position of one station that performs a relative positioning, an absolute position of the other station.

Relative position measurement method and relative position measurement system using satellites

A measuring system wherein radio waves from a GPS satellite () are received by a reference station () and a plurality of mobile stations () to perform relative measuring among particular stations, thereby measuring the shift amounts of the mobile stations (). At least one of the mobile stations () is disposed such that a baseline limit length allowing relative measuring relative to the reference station () is exceeded, and the intervals between particular mobile stations () are shorter than the baseline limit length allowing relative measuring. Each of the stations () is equipped with a GPS receiver () that receives the radio waves from the GPS satellite (), and further equipped with a wireless communication apparatus () that transmits/receives data to/from a particular station. There are provided a relative shift amount calculation part () for calculating the relative shift amount between the particular stations; and a reference relative-shift-amount calculation part () for determining, based on a reference relative-shift-amount of one station that performs a relative measuring, a reference relative-shift-amount of the other station.

Relative measurement method and relative measurement system using satellite

A method for manufacturing a semiconductor laser device in which a first conductivity type cladding layer, and active layer, a second conductivity type first cladding layer, and a second conductivity type second cladding layer are laminated in this order on a semiconductor substrate by crystal growth, the second conductivity type second cladding layer is processed into a plurality of stripe-shaped ridge structure portions, and a laser bar is formed by cleavage in a direction orthogonal to a longitudinal direction of the ridge structure portions. According to this method, it is possible to provide a method for manufacturing a semiconductor laser device and a method for inspecting a semiconductor laser bar in the manufacturing process, capable of determining for each chip whether or not a deviation of a resonator length is within the tolerance in a simple manner.

Method for manufacturing semiconductor laser device and method for inspecting semiconductor laser bar

A laminated composite includes: a 1st-conductive-type cladding layer laid on a substrate; an active layer laid on the 1st-conductive-type cladding layer; and a ridge-stripe 2nd-conductive-type cladding layer laid on the active layer. A pair of films is disposed at the end faces of the laminated composite so as to oppose each other along the lamination direction. The paired films are formed to have different spectral reflectances from each other. The resonator structure is formed with the laminated composite and the paired films. When, in the length direction of the resonator, a side with one of the paired films which has a smaller spectral reflectance is the forward side and a side with the other film having a larger spectral reflectance is the backward side, the laminated composite is structured so that the optical confinement factor becomes smaller on the forward side than on the backward side.

Ridge-stripe semiconductor laser

A position measurement system for measuring displacement of an observation station viewed from a reference station by receiving radio waves from satellites by these stations, and performing relative position measurement between the stations, having: a short period displacement measurement section for measuring a short period displacement component in each of the stations through independent position measurement; a relative position computing section for performing relative position measurement between said stations; a long period position computing section for inputting a short period displacement component measured by the short period displacement measurement section, a relative position determined by the relative position computing section and an absolute position from the reference station, and determining the absolute position including a long period displacement component by removing the short period displacement component measured by each of the stations; and a radio communication device installed on each of the stations, for transmitting/receiving data to/from another station.

Relative position measurement system using satellite

A semiconductor laser device of the present invention includes: a first conductivity type cladding layer; an active layer; and a second conductivity type cladding layer, which are on a substrate. The semiconductor laser device further includes a stripe structure for injecting carriers therein. A width of the stripe is wider at a front end face of a resonator from which laser light is emitted than at a rear end face that is located on an opposite side of the front end face, and a reflectance of the front end face is lower than a reflectance of the rear end face. With this configuration, the injection of carriers into an active layer can be controlled in accordance with an optical intensity distribution along the resonator direction within the semiconductor laser, thus achieving a decrease in threshold current, an enhancement of a slope efficiency and an enhancement of a kink level. As a result, the semiconductor laser device can be provided so that stable laser oscillation in the fundamental transverse mode can be realized up to the time of a high optical output operation.

Semiconductor laser

In order to dress a subject's hair using the two first and second kinds of medicine solutions, a hood must be once taken off. Therefore, in order to apply the second medicine solution, the position of the hood must be adjusted so that the head is centrally located at the hood. This adjustment is troublesome for both the operator and subject. In order to obviate such inconvenience, a hair dressing device equipped with a hood D includes a fixed hoodand an opening/closing hoodinto which said hood is divided, said opening/closing hood being openably attached to said fixed hood. In this case, said opening/closing hoodis opened/closed so that said fixed hoodis opened from above.

Hair dressing device equipped with hood

A hair treatment promoting apparatus in which a reflector provided with a heater for radiating infrared rays is rotated by a motor so that the infrared rays are radiated to the top, back and both sides of a head of a subject. The heater and reflecting plate form a heating device rotated by the motor and a disk is provided which rotates with the motor. The disk is provided with a slit for a home position and slits for stopping arranged on both sides thereof, and energization of the motor is interrupted when the slit for the home position is detected within a prescribed time elapsed from when the slit for stopping is detected in the direction of rotating the heating device, thereby stopping the heating device at the home position.

Growing community of inventors

Osaka, Japan

Keiji Ito