So before you can approach any funders, you need to know what your product will look like, estimate how much it will cost to produce, and know about how much profit it will generate for the company. You don't need previous experience with these important questions. You can find help from many sources. This is important. If you don't work for a particular company that will fund your product, there still are many sources for funding.
Some large companies have foundations that make grants.
There are special interest grant-making organizations, venture capitalists, professional associations, the U.S. government, and others. Local libraries have a number of directories you can check. Another good idea is to look for companies that are actively seeking new products. They also provide inventors a venue for offering their products for sale or license. Products also can be developed in stages.