Ricoh Company, Ltd.

Toshishige Fujii

Yoshitaka Hayashi

Noboru Sasa

Masayuki Fujiwara

Masaki Kato

Toshiyuki Kabata

Hiroshi Miura

Toshiyuki Ohsawa

Okitoshi Kimura

Toshihide Sasaki

Kawori Tanaka

Nobuo Katagiri

Takeshi Ogawa

Hiroaki Tanaka

Hiroyoshi Sekiguchi

Yasuhiro Nihei

Masahiro Itoh

Atsuyuki Watada

Shinya Narumi

Hisamitsu Kamezaki

Shu Takahashi

Yoichi Ichikawa

Yoshiko Kurosawa

Takeshi Kibe

Hirotaka Komoda

Tadashi Nakamura

Kohji Sakai

Katsuyuki Yamada

Satoru Sugawara

Tomohiro Inoue

Takayuki Nakamura

Takeshi Ueda

Noriyuki Iwata

Masataka Mohri

Masaetsu Takahashi

Kohei Ushio

Hiroyuki Iechi

Kengo Makita

Yumiko Kishi

Yuuta Yoshino

Hideyuki Yasufuku

Yumiko Suzuki

A container includes: a container body; a cap to seal the container body; an identification code on a top surface of the cap; and multiple concaves on the container body. The multiple concaves on the container body forms a first image having a first area, the identification code on the cap forms a second image having a second area smaller than the first area, the container body has a first diffuse reflectance difference between the first image and a portion excluding the first image, and the identification code has a second diffuse reflectance difference between a code portion and a background portion excluding the code portion in the second image. The second diffuse reflectance difference is larger than the first diffuse reflectance difference.

Container and container product

First and second types of object detectors, a sensing device, and a mobile apparatus. The first and second types of object detectors include a light source configured to emit light, photoreceptor configured to receive the light reflected by an object, and a binarizing circuit configured to binarize a signal sent from the photoreceptor at a threshold V. In the first and second types of object detectors, object detection processes are performed in a same direction until a high-level signal is output M times from the signal binarized by the binarizing circuit. In the first type of object detector, a value of the M is determined based on an incidence of shot noise where peak intensity exceeds the threshold Vin the photoreceptor. In the second type of object detector, a threshold Vis set based on a value of the M.

Object detector, sensing device, and mobile object apparatus

A distance-measuring apparatus, a mobile object, a robot, a three-dimensional measuring device, a surveillance camera, and a distance-measuring method. The distance-measuring apparatus, a mobile object includes a light source to emit light, an imaging element to receive and photoelectrically convert the light into a plurality of electrical signals, and to obtain the electrical signals upon being sorted into a plurality of phase signals, and a computing unit to calculate distance to the object based on the phase signals. In the distance-measuring apparatus, a period of time during which the imaging element obtains the phase signals is different from a light emitting period of the light source in length. The distance-measuring method includes determining whether or not aliasing is present based on a light emitting period of the light source, a period of time during which the plurality of phase signals are obtained, and a result of the calculating.

Distance-measuring apparatus, mobile object, robot, three-dimensional measuring device, surveillance camera, and distance-measuring method

An distance measurement apparatus includes a light source to emit irradiation light, circuitry to output, to the light source, a first current that changes in accordance of light-emission timing information defining at least turn-on timing of the light source, and a second current that does not change in accordance of the light-emission timing information, a sensor to detect reflection light reflected from an object irradiated with the irradiation light emitted from the light source. The circuitry calculates a distance to the object based on a detection amount of the reflection light detected by the sensor.

Distance measurement apparatus, and method of measuring distance

A ceramic package includes a chip mounting portion, a photodiode (PD) mounting portion, a plurality of connecting terminals, and a gold-plated portion. The chip mounting portion is a portion on which a surface-emitting laser array chip is mounted on a first ceramic layer. The PD mounting portion is provided to a second ceramic layer stacked on the positive side in a c-axis direction of the first ceramic layer. Openings are formed at four corners of the PD mounting portion. A scale is formed on a portion that can be observed through the opening of the second ceramic layer on the surface of the positive side in the c-axis direction of the first ceramic layer.

Package member for electronic component and optical device including the package member

An optical device is disclosed, including a surface emitting laser element having a surface emitting laser which emits a light in a direction which is perpendicular to a substrate face; a light receiving element which monitors the light of the surface emitting laser; a package provided with a region on which the surface emitting laser element and the light receiving element are provided; and a lid which has a window through which passes the light of the surface emitting laser, the window being formed with a transparent member, and which covers the surface emitting laser element and the light receiving element.

Optical device, optical scanning apparatus, and image forming apparatus

Disclosed is a method for manufacturing an optical information recording medium. The method includes laminating plural layers successively on a substrate having a through-hole at its center; and fitting center caps each having a predetermined radius in the through-hole to form at least two of the plural layers by a spin coat method. A radius of a first center cap used for forming an upper layer of the at least two layers is larger than a radius of a second center cap used for forming a lower layer thereof.

Method for manufacturing optical information recording medium

An optical recording medium containing a substrate and a recording layer over the substrate, wherein the recording layer primarily contains Bi and O, and further contains B and at least one element X selected from Ge, Li, Sn, Cu, Fe, Pd, Zn, Mg, Nd, Mn and Ni, and a sputtering target containing Bi, B and at least one element X selected from Ge, Li, Sn, Cu, Fe, Pd, Zn, Mg, Nd, Mn and Ni.

Optical recording medium, and sputtering target and method for producing the same

A disclosed multilayer optical information medium includes three or more information layers. Address information indicating positions in each of the information layers is recorded in a helical manner. The information layers comprise at least one I to O layer in which values representing addresses in the address information increase from an inner perimeter section toward an outer perimeter section, and at least one O to I layer in which the values representing the addresses in the address information increase from the outer perimeter section toward the inner perimeter section. All of the I to O layers have substantially the same address information and all of the O to I layers have substantially the same address information. Layer specifying information specifying the information layer is attached to the address information.

Multilayer optical information medium and optical information processing apparatus therefor, program product and information medium including the same

The present invention provides a write-once-read-many optical recording medium comprising a substrate, a recording layer comprising any one of bismuth and an oxide of bismuth, an overcoat layer and a reflective layer in this order from a laser beam incident plane, wherein the write-once-read-many optical recording medium has a reflectivity of 35% or less when a laser is applied to the flat part of the substrate or a write-once-read-many optical recording medium comprising a substrate, an undercoat layer, a recording layer comprising any one of bismuth and an oxide of bismuth, an overcoat layer and a reflective layer in this order from a laser beam incident plane, wherein the write-once-read-many optical recording medium has a reflectivity of 35% or less when a laser is applied to the flat part of the substrate.

Write-once-read-many optical recording medium

A write-once-read-many optical recording medium is disclosed that includes a support substrate; a recording layer on the support substrate, the recording layer containing an oxide of one of a metal and a metalloid as a principal component; and a layer adjacent to the recording layer. The recording layer includes a region where a constituent element of the adjacent layer is dispersed. Recording and reproduction are performable with laser light of a blue wavelength region.

Worm optical recording medium

To provide an optical recording medium including a substrate and over the substrate at least a recording layer that can record and reproduce with laser light in a blue wavelength region, wherein the recording layer includes Bi and O as main components, further includes at least any of C and N, and does not include Fe; or an optical recording medium including a substrate and over the substrate at least a recording layer that contains, as main components, Bi oxide, and a simple substance of each of one or more elements M (except Bi, C, and N) that enhance a light absorption function for a recording and reproducing laser light, wherein the optical recording medium can record and reproduce with laser light in a blue wavelength region, is provided.

Optical recording medium, sputtering target, and method for manufacturing the same

To provide a sputtering target for preparing a recordable optical recording medium characterized by comprising Bi and B and a manufacturing method thereof, a recordable high density optical recording medium using the sputtering target, and a sputtering target which is capable of improving a speed of the film formation for the improvement of productivity, which has a high intensity at the time of the film formation and which has a heightened packing density.

Sputtering target and manufacturing method therefor, and recordable optical recording medium

To provide a sputtering target used for the formation of a recording layer of a recordable optical recording medium, wherein the sputtering target contains Bi and Fe and the packing density of the sputtering target is greater than 96%, and a recordable optical recording medium manufactured by using the sputtering target, which the recordable optical recording medium is capable of high-density recording even in the blue laser's wavelength range.

Sputtering target and manufacturing method therefor, and optical recording medium and manufacturing method therefor

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Kanagawa, Japan

Toshishige Fujii