Seiji Katayama
28Patents
7h-index
50Co-inventors
72Inventor score
Filing activity: Nov 5, 1985 → Jul 8, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6402831B1 | Concrete containing aqueous slurry of ground calcium carbonate | Emerging Cross-Sectional Technologies | 43 | Expired |
| US6123009A | Swash plate of swash-plate compressor | Mechanical Engineering; Lighting; Heating | 32 | Expired |
| US4733942A | Optical fiber coated with an organopolysiloxane curable with actinic rays | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6192784A | Swash plate compressor | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5168097A | Laser deposition process for forming an ultrafine-particle film | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4619691A | Method of manufacturing ultra-fine particles | Performing Operations; Transporting | 12 | Expired |
| US6217295A | Swash plate type compressor | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6151796A | Substrate drying device, drying method and substrate dried by the same | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US4915980A | Method for producing amorphous metal layer | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6694864B2 | Swash plate type compressor | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US6546841B2 | Swash plate compressor and piston therefor | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US8692152B2 | Laser lap welding method for galvanized steel sheets | Performing Operations; Transporting | 3 | Active |
| US7568609B2 | Welding method | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US6575080B1 | Single-headed piston for swash plate type compressor wherein head portion has a curved surface at axial end | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US6332394A | Piston for swash plate type compressor, wherein head portion includes radially inner sliding projection connected to neck portion | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US6484621B1 | Swash plate type compressor wherein piston head has inner sliding portion for reducing local wear | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US6610767B1 | Antistatic inorganic filler, resin composition containing the filler and method for preparing the inorganic filler | Chemistry; Metallurgy | 2 | Expired |
| US6453555B1 | Method of producing compressor piston | Emerging Cross-Sectional Technologies | 2 | Expired |
| US8168031B2 | Method for metal-resin joining and a metal-resin composite, a method for glass-resin joining and a glass-resin composite, and a method for ceramic-resin joining and a ceramic-resin composite | Emerging Cross-Sectional Technologies | 2 | Active |
| US6393964B1 | Compressor having piston rotation restricting structure with lubricating inclined guide surface | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US6751971B2 | Variable displacement type compressor, air conditioner with the variable displacement type compressor, and method for controlling displacement in the variable displacement type compressor | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US7699585B2 | Swash plate type compressor | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US6395404B1 | Blank used for manufacturing single-headed piston, and method of producing the blank | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6378416B1 | Swash plate type compressor piston wherein inner surface of hollow cylindrical section of body portion has axially extending reinforcing projections | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US6438834B1 | Method of making a swash plate type compressor piston whose head portion is formed by pore-free die-casting | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.