Honda Motor Co., Ltd.

Nippon Steel Corporation

Nippon Steel Sumitomo Metal Corporation

Tanaka Seimitsu Kogyo Co., Ltd.

Suzuki Metal Industry Co., Ltd.

Atsushi Murakami

Daisuke Tabuchi

Ko Kurata

Kensuke Honma

Keiichi Maekawa

Manabu Kubota

Tatsuro Ochi

Masayuki Hashimura

Hideo Kanisawa

Yuki Mizukura

Hikaru Yokomura

Shiro Kokubu

Hiroshi Mahira

Masao Ishida

Tasuku Yamaguchi

Keigo Mine

Tomoyuki Matsumura

Kazuhisa Maeda

Daiji Kawaguchi

Hitoshi Demachi

Tadahisa Masatani

Takayuki Kisu

Satoru Suwa

Shoichi Suzuki

Takaaki Harasaki

Motonobu Suehiro

Jun Kawaguchi

A tank made of resin capable of enhancing freedom of a tank shape and improving an ease of installation in a vehicle body. The tank made of resin is provided with a tubular projection projecting to an inside and an outside of a wall surface of a tank body that has a barrier layer, and an end edge part of the barrier layer is molded integrally with an outer peripheral resin part of the tubular projection.

Tank made of resin

A tank made of resin provided with a barrier layer, which prevents the barrier layer from rolling up and has improved durability. In a tank made of resin that includes a barrier layer provided on an inner surface of a tank body made of resin, an opening part is provided in the barrier layer, a thick part projecting toward an inside or an outside of the tank body is provided in a resin layer at an outer peripheral part of the opening part, and the barrier layer and a casting flange part at a base of an oil filling port tubular part are molded with the resin of the tank body in a state in which the casting flange part is located at the thick part.

A resin-made fuel tank includes: a resin-made fuel tank main body provided by joining an upper half and a lower half; a barrier sheet layer that is provided on an inner surface of the fuel tank main body and that reduces permeation of a fuel from the fuel tank main body; and a front mounting stay and rear mounting stays for mounting the fuel tank main body to a vehicle body. The front mounting stay and the rear mounting stays are provided on the fuel tank main body at positions vertically spaced from an upper joint surface and a lower joint surface at which the upper half and the lower half re joined to each other.

Resin-made fuel tank

A catalyst converter having a retaining mat with a thickness wherein the apparent density during assembling becomes 0.25 g/cmor more and less than 0.51 g/cmand the outside diameter Dof a catalyst retainer is set according to interference of the retaining mat in passing through a press-in tool and interference of the retaining mat after being pressed into a retaining tube. The retaining mat is formed of a non-expandable inorganic fiber sheet. A pressing force moves the catalyst retainer in the axial direction with respect to the retaining tube while the catalyst converter device is used with the length Lalong the longitudinal direction of the catalyst retainer in the retaining mat wound around the catalyst retainer being set longer than the winding diameter Dof the retaining mat around the catalyst retainer so that a retaining force R greater than the pressing force F can be secured.

Catalyst converter device for purifying exhaust gas and saddle-ride type vehicle

An exhaust muffler device has a ceramic catalyst body, and a holding tube having an end portion configured to hold the ceramic catalyst body therein with a holding mat therebetween. The end portion is reduced in diameter to form a reduced diameter portion. An exhaust pipe is connected to the holding tube, with a downstream end portion thereof being fitted to an inner circumference of the reduced diameter portion of the holding tube. An inner circumferential surface of the downstream end portion of the exhaust pipe is in proximity to a boundary portion of the holding mat and the ceramic catalyst body.

Exhaust muffler device

It is devised to further enhance strength and straightening ability of a nitrocarburized raw material for crankshafts. A nitrocarburized raw material for crankshafts is formed so as to have a composition composed of C, Si, Mn, Cu, Ni, Cr, V, S, s-Al, Ca and N in prescribed % by mass, with the balance being Fe and inevitable impurities and having a structure of ferrite+pearlite; after smelting a steel having the foregoing composition, hot forging is performed; thereafter, a normalizing treatment is applied to the subject hot forged material at a treatment temperature in the range of from 780&#xb0; C. to 850&#xb0; C.; and straightening process for correcting bending to be caused due to the nitrocarburizing treatment is later applied.

Nitrocarburized raw material for crankshafts and method for manufacturing the same

High strength steel wire for spring containing, by mass %, C: 0.67% to less than 0.75%, Si: 2.0 to 2.5%, Mn: 0.5 to 1.2%, Cr: 0.8 to 1.3%, V: 0.03 to 0.20%, Mo: 0.05 to 0.25%, W: 0.05 to 0.30%, and N: 0.003 to 0.007%, having a total of contents of Mn and V of 0.70%&#x2266;Mn+V&#x2266;1.27% and a total of contents of Mo and W of 0.13%&#x2266;Mo+W&#x2266;0.35%, limiting P: 0.025% or less, S: 0.025% or less, and Al: 0.003% or less, and having a balance of iron and unavoidable impurities, having a microstructure comprised of, by volume percent, over 6% to 15% of retained austenite and tempered martensite, having a prior-austenite grain size number of 10 or more, having a density of presence of spheroidal carbides with a circle equivalent diameter of 0.2 to 0.5 &#x3bc;m of 0.06 particles/&#x3bc;mor less, having a density of presence of spheroidal carbides with a circle equivalent diameter of over 0.5 &#x3bc;m of 0.01 particles/&#x3bc;mor less, and having a tensile strength of 2100 to 2350 MPa.

High strength steel wire for spring

Abrasion resistance is further enhanced in a sliding member used in an internal combustion engine. With respect to a valve lifterused in an internal combustion engine, hard particles having higher hardness than the valve lifterare dispersed onto the top faceof the valve lifter, and a nitriding treatment is conducted on the top facedispersed with the hard particles.

Sliding member and surface treatment method for the same

A cold forging steel excellent in grain coarsening prevention and delayed fracture resistance and method of producing the same are provided that enable omission of a step of annealing or spheroidization annealing before cold forging and improvement of delayed fracture resistance of a high-strength component used with a heat-treated surface. The cold forging steel is a steel of a specified composition having dispersed in the matrix thereof particles of not greater than 0.2 &mgr;m diameter of one or more of TiC, Ti(CN), NbC, Nb(CN) and (Nb, Ti)(CN) in a total number of not less than 20/100 &mgr;m,. The method of producing a cold forging steel includes the steps of heating this steel to not lower than 1050&deg; C., hot-rolling the steel into steel wire or steel bar, and slowly cooling the steel at a cooling rate of not greater than 2 C./s during cooling to a temperature not higher than 600&deg; C. to obtain a steel having dispersed in the matrix thereof particles of not greater than 0.2 &mgr;m diameter of one or more of TiC, Ti(CN), NbC, Nb(CN) and (Nb, Ti)(CN) in a total number of not less than 20/100 &mgr;m,.

Cold forging steel having improved resistance to grain coarsening and delayed fracture and process for producing same

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Wako, Japan

Atsushi Murakami