Casio Computer Co., Ltd.

Jtekt Corporation

Hiroshi Sato

Kanji Kawasaki

Wataru Takamizawa

Masaki Toyama

A thrust roller bearing including: a pair of races each of which has an annular plate; a cage interposed between the pair of races, formed by a single annular plate including a bent portion bent in an intermediate region in a radial direction of the cage such that a plurality of projecting portions to project in a thickness direction of the cage are formed on a first side and a second side of the cage, and a plurality of pockets stamped out in the thickness direction at predetermined intervals in a circumferential direction of the cage; and a plurality of rollers received respectively in the pockets. At least two projecting portions are formed on each of the first side and the second side of the cage; and a plurality of race-contacting projection portions are arranged on a surface of at least one of the two projecting portions on at least one of the first side and the second side of the cage at predetermined intervals in the circumferential direction of the cage.

Thrust roller bearing

A decompression data display device which calculates during a diver's dive the partial pressure of an inert gas in each of the tissues of the diver's body with the tissues having different half saturation times. The inert gas partial pressure of the inspired gas is compared with each of the partial pressures of the respective inert gases solved in the tissues to determine whether the inert gas is being discharged or absorbed. When the inert gas is being discharged, the respective inert gas partial pressure values in the tissues are calculated from an arithmetic expression different from an arithmetic expression used when the inert gas is being absorbed, and decompression data is obtained from the respective calculated inert gas partial pressure values in the tissues.

Decompression data display devices

The respective partial pressures of an inert gas in the tissues of a human body different in saturation half-time are calculated from the sensed ambient pressure during diving. The respective remaining times of the tissues up to the non-decompression limit are calculated from the obtained partial pressures of the inert gas and are displayed simultaneously on a graphic display.

Electronic depth meter

An astronomical data indicating device is provided with a memory for storing location data representing a location on the earth. In the present device, before calculation of astronomical data such as hour angle data of moon and moon phase data, at first hour angle data and moon phase data for Greenwich Mean Time are calculated regardless of the place where the present device is used, and then hour angle data and moon phase data at the place where the present device is used are calculated. Therefore, the calculation process is performed in a very simple manner.

Astronomical data indicating device

An electronic compass can store azimuth data of points to be passed by a user in a plurality of registers, and the stored azimuth data are sequentially displayed on a display device every time an external operation switch is operated. The compass includes a magnetic sensor for detecting a geomagnetism, thereby obtaining north azimuth data on the earth. The north azimuth data obtained by the magentic sensor is displayed simultaneously with the stored azimuth data. Therefore, the user can know at each point a direction to go on the basis of the two displayed azimuth data, i.e., the stored azimuth data, and the north azimuth data on the earth.

Electronic compass

An integral calculating apparatus inputs arbitrary curve data by operating keys and the like so as to display the inputted curve data, and also designates a predetermined range with respect to the inputted curve data in order to perform a definite integral calculation with respect to the inputted curve data.

Integral calculating apparatus

In a pressure instrument with depth/altitude and time display, a measurement time period from a starting instant up to a stopping instant of the time measurement is measured by measurement-time counting means, and also another measurement data is acquired by detecting pressures from the starting instant up to the stopping instant of the pressure measurement. After the measurements are taken and when a measurement stop signal is outputted, a determination is made whether or not the measured time periods are longer than a predetermined time period. If the measured time period is longer than a predetermined time period, this dive is regarded as one for which it is required to store a record, and then the measurement data acquired between the starting instant and the stopping instant of the measurement are stored in a memory. If, however, the measured time period is shorter than a predetermined time period, this dive is regarded as one for which it is not required to store a record, and then no measurement data is stored. Thus, although the measurement data acquired by SCUBA (self-contained under water breathing apparatus) diving are stored in the memory, the measurement data acquired by non-SCUBA diving with a diving time of 2 to 3 minutes are not stored in this pressure instrument, so that the memory can be more effectively utilized.

Growing community of inventors

Fussa, Japan

Hiroshi Sato