Ricoh Company, Ltd.

Haruki Murata

Mariko Takii

Yoshihiro Murasawa

Hiroyuki Kishida

Kenichi Mashiko

Masato Taikoji

Kei Niwayama

Koichi Sakata

Toyoaki Tano

Shinya Nakagawa

Saori Yamada

Kohsuke Miyazaki

Masashi Nagayama

Tohru Suganuma

Masahiro Seki

Takahiro Nakamura

Yuuya Katoh

Yuta Kimura

A sensor device includes a first inertial sensor that contacts a body of a user, a second inertial sensor that contacts a neck of the user, and circuitry that presumes a behavior of the user based on a first signal detected by the first inertial sensor and a second signal detected by the second inertial sensor.

Sensor device, nontransitory recording medium, and presuming method

An information processing apparatus includes circuitry to acquire behavior information of a plurality of users having a conversation, generate sound data based on the behavior information, and cause an output device to output an ambient sound based on the sound data, wherein the sound data is generated by combining a number of sounds, a number of beats and a tone based on the behavior information.

Information processing apparatus, information processing system, information processing method, and non-transitory recording medium to generate sound data including beats based on user behavior information in a scheduled conference

An information processing system includes: an image display apparatus provided in a space and configured to display an image; a sensor apparatus carried by a user who is present in the space and configured to output a signal for detecting position information of the user in the space; and an information processing apparatus. The information processing apparatus includes circuitry configured to store a plurality of pieces of position information of a plurality of users including the user, who are in present in the space, in association with the plurality of users, the plurality of users being detected based on signals output from a plurality of sensor apparatuses including the sensor apparatus, and control environment effect production that supports communication between the plurality of users by the image displayed by the image display apparatus, based on each of the plurality of pieces of position information of the plurality of users.

Information processing system, information processing apparatus including circuitry to store position information of users present in a space and control environment effect production, information processing method, and room

A carrier for developing an electrostatic latent image includes a core material particle and a resin layer covering a surface of the core material particle. The resin layer includes a resin and at least one kind of a fine particle. At least one kind of the fine particles includes a chargeable fine particle. The chargeable fine particle has a long diameter of 400 to 900 nm. The chargeable fine particle has a shape factor SF-1 of 160 to 250.

Carrier for developing electrostatic latent image, two-component developer, developer for replenishment, image forming device, process cartridge, and image forming method

A carrier for a developer of an electrostatic latent image, the carrier including: core particles having magnetism; and a coating layer coating a surface of each of the core particles, wherein the coating layer includes two or more kinds of inorganic particles, at least one kind of inorganic particles among the two or more kinds of inorganic particles is inorganic particles A having conductivity and a peak particle diameter of from 300 nm through 1,000 nm, and surface roughness of the carrier calculated by Formula 1 below is from 1.10 m/g through 1.90 m/g,C&#x2212;F&#x2003;&#x2003;Formula 1where C is a BET specific surface area (m/g) of the carrier and F is a BET specific surface area (m/g) of the core particles.

Carrier for developer of electrostatic latent image, developer, and image forming apparatus

A carrier includes a core and a covering layer covering the core and including at least carbon black and a filler. The maximum height Ry of the surface of the carrier is from 4.0 &#x3bc;m to 5.0 &#x3bc;m.

Carrier, two-component developer, developer for replenishment, process cartridge, image forming apparatus, and image forming method

A carrier includes a resin layer including Al and Sn and covering the surface of the carrier. A detectable amount of Al is from 1.0% to 12.1% by atom and a ratio (Al/Sn) of the detectable amount of Al to that of Sn is from 2.0 to 50.0 when the carrier is subjected to an X-ray photoelectron spectroscopic (XPS) analysis.

Carrier and developer

Carrier for image forming includes a core material particle including a magnetic material and a coating layer disposed on the surface of the core material particle, the coating layer including a resin, carbon black, an inorganic particulate A, and an inorganic particulate B. The carbon black has a concentration gradient along a thickness direction of the coating layer with a concentration from high to low toward a surface of the coating layer while the inorganic particulate A has a concentration gradient along a thickness direction of the coating layer with a concentration from low to high toward the surface of the coating layer. The volume ratio of the carbon black is 0-30 percent at a depth range of 0.0-0.1 &#x3bc;m from the surface of the coating layer. The inorganic particulate A is electroconductive with a powder specific resistance of 200 &#x3a9;&#xb7;cm or less.

Carrier, developing agent, image forming apparatus, image forming method, replenishment toner, and process cartridge

A carrier for developing electrostatic latent images is provided. The carrier includes a magnetic core particle and a resin layer coating a surface of the magnetic core particle. The resin layer includes a particulate material A having a volume average particle diameter (a) and a particulate material B having a volume average particle diameter (b). The volume average particle diameter (a) of the particulate material A is the largest among volume average particle diameters of all particulate materials included in the resin layer, and an inequation 100&#x2265;(a)/(b)&#x2265;5 is satisfied. The particulate material A is barium sulfate.

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Kanagawa, Japan

Haruki Murata