Honda Motor Co., Ltd.

Pioneer Electronic Corporation

Fujifilm Corporation

Fujinon Corporation

Pioneer Corporation

Ricoh Company, Ltd.

Fuji Photo Film Company, Limited

Honda Giken Kogyo Kabushiki Kaisha

Cosmo Oil Co., Ltd.

Fuji Photo Optical Co., Ltd.

Wacom Co., Ltd.

Nippon Mining Co., Ltd.

Tatsuta Electric Wire & Cable Co., Ltd.

Cosmo Research Institute

Tohoku Pioneer Corporation

Takashi Suzuki

Kenichi Takahashi

Hiroshi Moriyama

Takashi Sasaki

Alex Bradshaw

Tetsuya Arai

Takehiko Senba

Takanori Sato

Hitoshi Yamazaki

Takeaki Funada

Norio Matsuda

Takeshi Misawa

Taro Asami

Yoshihiro Ito

Tatsuya Kubo

Shinichi Naohara

Michio Cho

Hideki Watanabe

Hideyuki Hara

Kentaro Tokiwa

Yoshitaka Fujinuma

Masayoshi Nakayama

Gen Inoshita

Hiroyuki Abe

Youichi Yamada

Kazuhiro Kiyoura

Tetsuya Ori

Hideo Kobayashi

Hiromitsu Yamakawa

Yoshihisa Sugiyama

Susumu Tateyama

Takayuki Noda

Masanori Ishikawa

Hiroki Saito

Kazunori Ohno

Susumu Yamada

Yoichi Iwasaki

Tsuyoshi Abe

Hiroshi Komatsuzaki

Masato Kondo

Yoichi Asano

Takeshi Sato

Tomoaki Arai

Hiroshi Munakata

Hideaki Yoshimura

Yoshihiro Hashizuka

Takao Shimamura

Tomohiko Kimura

Hiroyuki Isobe

Yoshimichi Nishio

Kazuo Kamei

Yuichi Kimikawa

Hideaki Watarihana

Makoto Yonezawa

Koichiro Sakata

Koichiro Haraguchi

Naomi Amemiya

Tsutomu Nakagawa

Keitaro Kaburagi

Yoshinori Kataoka

Kazushige Kawana

Yoshikiyo Konno

Motoi Kimura

Hiroyasu Eguchi

Akiharu Yagi

Takeshi Matsumoto

Tomoko Miyagawa

Kensuke Chiba

Kazunori Matsuo

Yukio Noguchi

Ryosuke Nagami

Yasuhiro Nishitani

Hiroaki Kojima

Masayuki Sasaoka

Ryoichiro Takahashi

Makoto Warashina

Yasunori Matsubara

Yasutake Ryu

Takao Yamada

Akihisa Shinoda

Katsuya Tajima

Chikara Iwasawa

Shigeru Saito

Masakazu Takahashi

Shigeki Edamatsu

Fumio Minami

Tomohiro Yoshinari

Shigenori Nakashizu

Masahiro Ise

Masaki Ando

Tomiaki Ando

Kazuhisa Ogawa

Hiroki Goto

Masashi Kawamoto

Eiichi Utsugi

Hitoshi Abe

Hiroshi Omura

Akira Nagashima

Osamu Kakutani

Dominique Vougier

An internal combustion engine capable of reducing an amount of dust taken from an outside air intake opening, with a simple configuration. The internal combustion engine includes a crankshaft, a cooling air intake device that houses a cooling fan coupled to the crankshaft and that includes a cooling air intake port, and an air cleaner device that feeds outside air to an air suction port to a cylinder, and the air cleaner device includes an outside air intake opening that opens toward the cooling air intake port.

Internal combustion engine

The internal combustion engine includes a fan cover that covers a cooling fan driven by a crankshaft, a top cover that covers the fan cover, and a cooling air passage between the fan cover and the top cover. The fan cover includes a first rib facing the top cover in the cooling air passage.

An engine includes a cylinder block in which a cylinder is formed, a piston arranged to be reciprocally movable in the cylinder, a cylinder head that is arranged on an upper side of the cylinder block and forms a combustion chamber between an inner peripheral surface of the cylinder and an upper surface of the piston, and an ignition plug arranged in the cylinder head. An inner peripheral portion of the cylinder head includes an inner peripheral side portion formed to be flush with the inner peripheral surface of the cylinder, and a tilting portion tilting from the upper surface of the piston to a side surface is formed on the piston.

Engine and work machine

The imaging lens consists of, in order from the object side, a first positive lens group, a stop, a second positive lens group, and a third negative lens group. The first lens group includes a negative lens which has a concave surface on the image side, and two positive lenses which are disposed to be closer to the image side than the negative lens and which have respective convex surfaces on the object side, convex surfaces on the object side. The second lens group includes an aspheric lens, and two sets of cemented lenses disposed to be closer to the image side than the aspheric lens. The third lens group consists of one lens component.

Imaging lens and imaging apparatus

A position indicator includes: a pressure detector that detects a pressure applied to a tip portion as an electrical displacement amount corresponding to a magnitude of the pressure; a pressure output circuit that outputs pressure information indicating a first polarity or a second polarity, the pressure information indicating the first polarity if the electrical displacement amount detected by the pressure detector is greater than or equal to a predetermined value, the pressure information indicating the second polarity if the electrical displacement amount detected by the pressure detector is less than the predetermined value, the predetermined value being larger than a value of the electrical displacement amount detected by the pressure detector when no pressure is applied to the tip portion of the core body; and a transmitting circuit that transmits the pressure information indicating the first polarity or the second polarity output circuit to a position detecting device.

Position indicator and coordinate input device

The imaging lens consists of, in order from an object side, a first lens group, a stop, a positive second lens group, and a negative third lens group. The second lens group includes a negative lens and a positive lens. During focusing, the second lens group moves, and the third lens group does not move. Image blur correction is performed by moving the entire third lens group or a part of the third lens group in the direction intersecting the optical axis.

The imaging lens consists of, in order from the object side, a first lens group having a positive power, a second lens group having a negative power, and a third lens group. The first lens group consists of, in order from the object side, a positive front group, a stop, and a positive rear group. The rear group has a cemented lens consisting of a negative lens concave toward the image side and a positive lens convex toward the image side in order from the object side. The second lens group consists of a negative lens. During focusing, only the second lens group moves. The following conditional expression relating to a focal length f2 of the second lens group and focal length f of the whole system is satisfied: 0.8&#x3c;|f2/f|&#x3c;5.

In an automotive carburetor, the time delay in the response of the engine to the change in the cross sectional area of the air passage is minimized, and a high level of freedom in selecting the communication cross section area of the air passage and the air fuel ratio for the given load of the engine. The carburetor () comprises a fuel passage () including a fuel nozzle () for supplying fuel to the intake passage, a first air passage () communicating with the fuel passage to supply air to the fuel passage, a variable communication unit () provided in a part of the first air passage and moveable between an open position for communicating the first air passage and a closed position for shutting off the first air passage and a switch mechanism () for moving the variable communication unit between the open position and the closed position in dependence on a load of the engine.

Carburetor for internal combustion engine

An imaging lens includes, in order from the object side to the image side, a positive first lens group, a stop, a positive second lens group, and a positive third lens group. The first lens group includes, consecutively in order from the most object side thereof, a negative lens and a positive lens. The second lens group is of a three lens configuration and includes a positive lens and a negative lens. The third lens group includes, consecutively in order from the most object side thereof, a negative lens and a positive lens. The imaging lens satisfies Conditional Formula (1): 0&#x3c;f1/f2&#x3c;2, which is related to the focal length f1 of the first lens group and the focal length f2 of the second lens group.

An imaging lens includes, consecutively in order from the most object-side, a positive first lens group, a positive second lens group and a third lens group. Focusing on an object at close distance from a state of having focused on an object at infinity is performed by moving the second lens group and the third lens group in such a manner that a distance between the second lens group and the third lens group changes while the first lens group is fixed. The first lens group includes, consecutively in order from the most object-side, a negative first lens and a negative second lens.

An imaging lens is constituted by, in order from the object side to the image side, a positive first lens group, a negative second lens group, and a positive third lens group. During focusing operations, the first lens group and the third lens group are fixed, while the second lens group moves. The first lens group has a cemented lens formed by cementing a positive lens and a negative lens together. The second lens group is constituted by two or fewer lenses. The third lens group is constituted by three or more lenses. The surface toward the object side of at least one of the first and second lenses from the object side within the third lens group is concave. A negative lens having a concave surface toward the object side is provided most toward the image side. A predetermined conditional formula is satisfied.

A retrofocus-type wide angle lens includes a first lens group having negative refractive power as a whole, a second lens group having positive refractive power as a whole, a stop, and a third lens group having positive refractive power as a whole, which are arranged in this order from the object side of the retrofocus-type wide angle lens. Further, the first lens group includes two negative meniscus lenses, each having a convex surface facing the object side. Further, each of the second lens group and the third lens group includes a three-element cemented lens.

Retrofocus-type wide angle lens and camera including the lens

A small-size wide angle lens substantially consists of a first lens group having positive refractive power, a stop, a second lens group having positive refractive power, and a third lens group having negative refractive power, which are arranged in this order from the object side. Each of the first lens group, the second lens group and the third lens group includes a negative lens and a positive lens. Further, at least one of the second lens group and the third lens group includes an aspheric surface. Further, the small-size wide angle lens satisfies predetermined formulas.

Small-size wide angle lens and camera including the lens

An electric motorcycle includes an electric motor for generating a traveling driving force, a battery for supplying electricity to the electric motor, and a case member for accommodating the electric motor and the battery therein. The battery includes a plurality of battery modules, which are disposed in the case member at positions forward of and above of the electric motor. Such arrangement of the electric motor and the battery in the case member helps to centralize mass in a vehicle body of the motorcycle, as well as simplifying assembly of the motorcycle.

Drive assembly for an electric motorcycle, and electric motorcycle incorporating same

An image pickup lens includes a first lens having a positive meniscus shape convex toward an object side, a second lens disposed on an image side of the first lens and has a meniscus shape convex toward the image side, and an aperture stop disposed on the object side of the image side surface of the first lens, and satisfies conditional expressions given below, in which f is a focal length of the entire system, Ris a paraxial radius of curvature of the object side of the first lens, Ris a paraxial radius of curvature of the image surface of the first lens, and DD is a distance on the optical axis between the first and second lenses: 0.45&#x3c;R2/R3&#x3c;0.66; and 0.05&#x3c;DD/f&#x2266;0.117.

Image pickup lens, image pickup apparatus, and portable terminal device

Growing community of inventors

Saitama, Japan

Takashi Suzuki