Ricoh Company, Ltd.

Michiaki Shinotsuka

Masaru Shinkai

Hiroyuki Iwasa

Katsuyuki Yamada

Makoto Harigaya

Tsutomu Kawase

Hiroshi Deguchi

Hiroyoshi Sekiguchi

Masaki Kato

Yoshiyuki Kageyama

Hiroko Iwasaki

Eiko Hibino

Yujiro Kaneko

Yukio Ide

Michiharu Abe

Kazunori Ito

Hajime Yuzurihara

Hiroko Tashiro

Masahiko Nakayama

Takuro Sekiya

Takaya Ochiai

Yuki Nakamura

Takashi Saito

Takashi Saitoh

Tohru Yashiro

Hiroshi Miura

Masaaki Kabumoto

Tatsuo Mikami

Kenya Yokoi

Takashi Shibaguchi

Takao Yamada

Mikio Kinoshita

Syuji Kubota

Miku Mizutani

Bob Spikman

Fumihiko Itoh

Yasuyuki Nakamura

Toshio Matsushita

Yasuo Kanbara

Shigeki Okauchi

Masahiko c/o Ricoh Company Ltd Nakayama

A detection device includes a first light source configured to emit a first light in a first direction, and a second light source configured to emit a second light in a second direction different from the first direction. A light receiver is configured to receive one of a first reflected light of the first light and a second reflected light of the second light. A black shielding plate surrounds a light source substrate including the first light source, the second light source, and the light receiver. An outer housing surrounds the black shielding plate. A transparent member is configured to pass the first light and the second light to outside of the outer housing.

Detection device and detection unit

A detection device configured to detect an object includes a first light source configured to emit infrared as first light in a first direction, a second light source configured to emit second light in a second direction different from the first direction, a shield to shield a portion of an optical path from the second light source, to allow a portion of the second light to pass, a light-receiving device configured to receive the first light reflected from the object and the portion of the second light reflected from the object, and circuitry configured to detect presence or absence of the object based on reception of reflected light by the detector. The second light is different from the first light.

Detection device, detection system and detection method

In a detecting device, infrared light is emitted by a first source in a detection target space; second light of a wavelength different from the infrared light is emitted by a second source in a direction different from a direction of the infrared light being emitted by the first source. A reflecting section provided in the direction of the second light being emitted reflects the second light. A light receiver receives infrared light emitted by the first source and reflected by the object, and receives infrared light radiating from the object as a result of the object being irradiated with the infrared light emitted by the first source and being irradiated with the second light emitted by the second source and reflected by the reflecting section. A detector detects the object based on the infrared light received by the light receiver.

Detecting device, detecting unit, and detecting system

A terminal apparatus for providing description about one or more objects arranged in a predetermined area is provided. The terminal apparatus includes a memory configured to store arrangement information indicating arrangement of the one or more objects in the predetermined area and description information associated with the one or more objects; and a processor coupled to the memory and configured to obtain area identification information for identifying the predetermined area when the terminal apparatus is located in the predetermined area, identify a positional relationship between the terminal apparatus and the one or more objects based on the arrangement information when the area identification information is obtained, and cause the terminal apparatus to describe an object of the one or more objects, in accordance with the identified positional relationship between the terminal apparatus and the one or more objects.

Terminal apparatus, output apparatus, and information processing system

An information distribution system includes a sound wave transmitter, a mobile terminal, and an information distribution device. The sound wave transmitter transmits identification information to identify the sound wave transmitter. The mobile terminal receives the identification information and transmits the identification information to the information distribution device. The information distribution device is configured to transmit distribution information related to the identification information received from the mobile terminal to the mobile terminal. The information distribution device counts a number of the mobile terminal that transmits each identification information every predetermined period and identification information and transmits the distribution information to the mobile terminal that transmits the identification information in which the number of the mobile terminal reaches a predetermined number.

Information distribution system

A locational information transmission apparatus that transmits information for identifying a location is provided. The locational information transmission apparatus includes a radio communication unit that performs radio communication; a sound wave transmitting unit that transmits a sound wave including first identification information; a radio wave transmitting unit that transmits a radio wave including second identification information; and a transmission control unit that changes, depending on control information reported via the radio communication, a method of transmitting the sound wave or a method of transmitting the radio wave.

Locational information transmission system, locational information transmission apparatus, and information processing device

Speaker with multiple diaphragms

A novel positional information transmission system includes a plurality of positional information transmission units. The positional information transmission unit includes a close-range wireless communication unit that performs close-range wireless communication and a sonic wave transmission unit that transmits positional information as a sonic signal used for detecting a position of a receiver that receives the sonic signal based on information transmitted by the close-range wireless communication unit.

Positional information transmission system, positional information transmitter, and positional information transmitting method

A transmitter is provided that is capable of communicating with a management apparatus via a network and is configured to output a plurality of sound waves in a plurality of different directions. The transmitter includes a memory storing a program, and a processor configured to execute the program to implement processes of outputting a first sound wave including first unique information in a first output direction of the plurality of different directions, outputting a second sound wave including second unique information that differs from the first unique information in a second output direction that differs from the first output direction, and individually controlling the first sound wave output by the first sound wave output unit and the second sound wave output by the second sound wave output unit based on a request from the management apparatus.

Transmitter and position information management system

An energy conversion apparatus including a permanent magnet fixed to a predetermined region; and a diaphragm arranged on the permanent magnet, the diaphragm including a coil having a conductor wire pattern formed on the diaphragm, wherein the diaphragm includes a slit formed in the diaphragm.

Energy conversion apparatus and speaker structure

An energy converter includes a permanent magnet and a diaphragm. The permanent magnet is fixed to a predetermined area. The diaphragm is disposed on the permanent magnet and has a coil formed of a conductor pattern.

Energy converter, speaker, and method of manufacturing energy converter

Provided is an energy conversion apparatus including a diaphragm on which a coil of a lead pattern is formed, a magnet substrate configured to generate a magnetic field towards the coil on the diaphragm, and a magnetic film configured to generate magnetic force between the magnetic film and the magnet substrate to support the diaphragm therebetween.

Energy conversion apparatus

Disclosed is a magnetic body composition, including a resin and a magnetic nanoparticle, the magnetic nanoparticle including an oxide of at least one kind of metal selected from the group composed of Ga, Zn, and Sn and an FeCo oxide.

Magnetic body composition and a magnetic body product

A multilayer optical recording medium including at least multiple information layers each having at least a phase change recording layer capable of recording information by laser irradiation and a reflection layer, wherein each information layer other than the innermost information layer as seen from a side of the laser irradiation has at least a lower protection layer, the phase change recording layer, an upper protection layer, the reflection layer and an optical transmission layer, the upper protection layer and the optical transmission layer in each information layer other than the innermost information layer as seen from the side of the laser irradiation are composed of an Sn oxide-containing material and a thickness of the upper protection layer in each information layer other than the innermost information layer as seen from the side of the laser irradiation is 2 nm to 15 nm is provided.

Multilayer optical recording medium and optical recording method

A multi-layered phase-change optical recording medium having a first substrate and a second substrate, and a plurality of information layers, wherein each of thermal diffusion layers of information layers other than an information layer disposed at the innermost side as viewed from the first substrate side has In oxide, Zn oxide, Sn oxide and Si oxide, and when the contents of thereof are represented by 'a', 'b', &#x201c;c&#x201d; and &#x201c;d&#x201d; [mol %] respectively, the following requirements are satisfied, and when the refractive index of the first and second substrates was represented by &#x201c;n&#x201d;, the laser light wavelength is represented by &#x201c;&#x3bb;&#x201d; and the depth of the groove guide of the first and second substrates is represented by H, the H satisfied the following requirement,3&#x2266;a&#x2266;500&#x2266;d&#x2266;30=100&#x3bb;/17&#x2266;&#x3bb;/11.5

Multi-layered phase-change optical recording medium

Growing community of inventors

Kanagawa, Japan

Michiaki Shinotsuka